Dental Radiology Syllabus for 2020-2021
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Course

DHYG-1304-001 Dental Radiology

Prerequisites

Course Description

Fundamentals of oral radiography, including techniques, interpretation, quality assurance and ethics.

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Occupational License Disclaimer

Notice to Students enrolled in an educational program for preparation of issuance of certain occupational licenses:

Students enrolled in an educational program in preparation for obtaining certain occupational licenses are potentially ineligible for such license if the student has been convicted of an offense. For further information, please contact:

Melodie Graves
Justice Involved Advocate
Student Service Center 117
mgraves24@actx.edu
806-371-5995
Make appointment at https://melodiegraves.youcanbook.me

You can also contact the Legal Clinic, or the faculty member in charge of the educational program that you seek to enroll in. The further information you will receive will include notification to you of your right to request a criminal history evaluation letter from the licensing authority in order to clarify your particular situation.

Hours

(3 sem hrs; 2 lec, 4 lab)

Class Type

On Campus Course

Syllabus Information

Textbooks

Required Course Textbooks

Students MUST have the current edition of the required textbook and workbook and must bring both books to all scheduled lecture and laboratory sessions.

1. Dental Radiography:  Principles and Techniques, 5th ed., Joen M. Iannucci, Laura Jansen Howerton, W.B. Saunders Company.

1. Dental Radiography: A Workbook and Laboratory Manual, (Companion for Dental Radiography:  Principles and Techniques, 5th ed.), Joen M. Iannucci, Laura Jansen Howerton, W.B. Saunders Company.

1. Amarillo College Dental Hygiene Program Manual  2019-2020.

 

Supplies

Course Supply List

1. Library Card for AC and/or city library.
2. Computer and Internet Access, printer, print cartridges.
3. Index cards – if preferred for note taking, Sharpie Marker and 1 Pocket Folder with brads or small three ring binder with pockets for maintaining radiographic projects and storing handouts.
4. Paper, pens, markers, and pencils.
5. Students will be required to have a tablet or laptop for this course. The tablet is preferred due to ease of use in the lab setting. Students are required to have regular, reliable access to a computer with a stable Internet connection. (Any system older than 4 years may not have the processing power to work with our current version of Blackboard and its components.) 
6. Students will also be required to print some materials and will need a printer, print cartridges, and a supply of printer paper.

Student Performance

End-of-Course Outcomes

Explain the principles of radiation as it relates to physics, biology, hygiene, and safety; produce and interpret diagnostically acceptable radiographs utilizing various radiographic techniques; apply the principles of quality assurance and ethics in dental radiography; and describe the fundamentals of oral radiographic techniques and interpretation.

Course Overview

DHYG 1304 is included in the Dental Hygiene curriculum to provide the dental hygiene student with knowledge of the production and use of radiographs in dentistry; the interaction of x-rays with human tissues; radiographic quality and interpretation; and legal and ethical issues related to dental radiography.  This knowledge and the acquired entry-level skills will be applied in a clinical setting by correctly and safely producing diagnostic radiographs.

Chapter Objectives for the course:

Chapter 1 - Radiation History

1. Define the key terms associated with dental radiation.
2. Summarize the importance of dental images.
3. List the use of dental images.
4. Summarize the discovery of x-radiation.
5. Recognize the pioneers in dental x-radiation and their contributions and discoveries.
6. List the highlights in the history of x-ray equipment and film.
7. List the highlights in the history of dental radiographic techniques.
8. List the highlights in the history of digital imaging.

Chapter 2 - Radiation Physics

1. Define the key terms associated with radiation physics.
2. Identify the structure of the atom.
3. Describe the process of ionization.
4. Discuss the difference between radiation and radioactivity.
5. List the two types of ionizing radiation and give examples of each.
6. List the characteristics of electromagnetic radiation.
7. List the properties of x-radiation.
8. Identify the component parts of the x-ray machine.
9. Label the parts of the dental x-ray tubehead and the dental x-ray tube.
10. Describe in detail how dental x-rays are produced.
11. List and describe the possible interactions of x-rays with matter.

Chapter 3 - Radiation Characteristics

1. Define the key terms associated with radiation characteristics.
2. Describe the effect that the kilovoltage has on the quality of the x-ray beam and identify the range of kilovoltage required for dental imaging.
3. Describe how kilovoltage affects the density and contrast of the image.
4. Describe how milliamperage influences the quantity of the x-ray beam and identify the range of milliamperage required for dental imaging.
5. Describe how milliamperage affects the density of the image and how exposure time and milliamperage are related.
6. Describe how kilovoltage, milliamperage, exposure time, and source-to-receptor distance influence the intensity of the x-ray beam.
7. Calculate an example of radiation intensity using the inverse square law.
8. Explain how the half-value layer determines the penetrating quality of the x-ray beam.

Chapter 4 - Radiation Biology

1. Define the terms associated with radiation injury.
2. Describe the mechanisms and theories of radiation injury.
3. Define and discuss the dose-response curve and radiation injury.
4. Describe the sequence of radiation injury and list the determining factors for radiation injury.
5. Discuss the short-term and long-term effects as well as the somatic and genetic effects of radiation exposure.
6. Describe the effects of radiation exposure on cells, tissues, and organs and identify the relative sensitivity of a given tissue to x-radiation.
7. Define the units of measurement used in radiation exposure.
8. List common sources of radiation exposure.
9. Discuss risk and risk estimates for radiation exposure.
10. Discuss dental radiation and exposure risks.
11. Discuss the risk versus benefit of dental images.

Chapter 5 - Radiation Protection

1. Define the key terms associated with radiation protection.
2. Describe in detail the basics of patient protection before x-ray exposure.
3. Discuss the different types of filtration, and state the recommended total filtration for dental x-ray machines operating above and below 70 kV.
4. Describe the collimator used in dental x-ray machines and state the recommended diameter of the useful beam at the patient’s skin.
5. List six ways to protect the patient from excessive radiation during x-ray exposure.
6. Describe the importance of receptor handling and processing after patient exposure to x-radiation.
7. Discuss operator protection in terms of adequate distance, shielding, and avoidance of the useful beam.
8. Describe personnel and equipment monitoring devices used to detect radiation.
9. Discuss radiation exposure guidelines, including radiation safety legislation, maximum permissible dose (MPD), and the ALARA concept.
10. Discuss with the dental patient radiation protection steps used before, during, and after exposure to x-radiation.

Chapter 6 - Dental X-Ray Equipment

  1.  Define the key terms associated with dental x-ray equipment.

  2.  Discuss the regulation of dental x-ray machines at the federal, state, and local levels.

  3.  Recognize dental x-ray machines used for intraoral and extraoral exposures.

  4.  Describe a portable dental x-ray unit and how operator exposure is limited during use.

  5.  Identify the component parts of the dental x-ray machine.

  6.  Describe the purpose and use of dental x-ray receptor holders, beam alignment devices and collimating devices.

  7.  Identify commonly used dental x-ray receptor holders, beam alignment devices, and collimating devices.

Chapter 7 - Dental X-Ray Film

1. Define the terms associated with dental x-ray film.
2. Discuss why the radiographer should be familiar with dental x-ray film.
3. Describe film composition and latent image formation.
4. List the different types of x-ray film used in dentistry.
5. Define intraoral film and describe intraoral film packaging.
6. Identify the types and sizes of intraoral film available.
7. Discuss film speed.
8. Define extraoral film and describe extraoral film packaging.
9. Discuss the differences between intraoral film and extraoral film and identify the types of extraoral film available.
10. Describe the difference between screen and nonscreen films.
11. Describe the use of intensifying screens and cassettes.
12. Describe duplicating film.
13. Discuss proper film storage and protection.

Chapter 8 - Dental X-Ray Image Characteristics

1. Define the key terms associated with film image characteristics.
2. Differentiate between radiolucent and radiopaque areas on a dental image.
3. Describe a diagnostic dental image.
4. List the two visual characteristics of the radiographic image.
5. List the factors that influence density and contrast.
6. Discuss the difference between high contrast and low contrast.
7. Describe film contrast and subject contrast.
8. Describe the difference between short-scale contrast and long-scale contrast.
9. Identify images of high contrast, low contrast, no contrast, short-scale contrast, and long-scale contrast.
10. Describe a stepwedge and explain its function.
11. List the three geometric characteristics of the radiographic image.
12. List the factors that influence sharpness, magnification, and distortion.

Chapter 9 - Film  Processing

1. Define the key terms associated with processing of dental x-ray film.
2. Briefly describe how a latent image becomes a visible image.
3. Discuss the advantages of automatic film processing.
4. List and identify the component parts of the automatic film processor.
5. Describe the mechanism of automatic film processing.
6. List and discuss the four procedural steps for automatic film processing.
7. Describe the care and maintenance of the automatic film processor and automatic processing solutions.
8. List and discuss the five steps of manual film processing.
9. List the four basic ingredients of the developer solution.
10. List the four basic ingredients of the fixer solution.
11. Identify the parts of the processing tank: insert tanks, master tank, and lid.
12. Identify the equipment accessories needed for manual film processing.
13. List the procedural steps for manual film processing.
14. Describe the care and maintenance of the processing solutions, equipment, and equipment accessories used in manual film processing.
15. Discuss the primary function of the darkroom, as well as the location and size requirements necessary for the darkroom.
16. Discuss room lighting and safelighting.
17. Discuss miscellaneous requirements necessary in the darkroom.
18. Discuss waste management of items used in the darkroom.
19. Discuss the equipment requirements and procedural steps for film duplication.
20. Describe film processing problems that result from time and temperature errors.
21. Describe film processing problems that result from chemical contamination errors.
22. Describe film processing problems that result from film handling errors.
23. Describe film processing problems that result from lighting errors.

Chapter 10 - Quality Assurance in the Dental Office

1. Define the key terms associated with quality assurance in the dental office.
2. List quality control tests and quality administration procedures that should be included in the quality assurance plan.
3. Discuss the purpose and frequency of testing dental x-ray machines.
4. Describe the tests used to check for fresh film and adequate screen-film contact; discuss the frequency of testing and the interpretation of test results.
5. Describe the test used to check for darkroom light leaks and proper safelighting; discuss the frequency of testing and the interpretation of test results.
6. Describe the test used to check the automatic processor; discuss the frequency of testing and the interpretation of test results.
7. List the three tests used to check the strength of the developer solution.
8. Describe the preparation of the reference radiograph and the standard stepwedge radiograph; discuss the use of these radiographs to compare densities and to monitor the strength of the developer solution.
9. Describe the test used to check the strength of the fixer; discuss the frequency of testing and the interpretation of test results.
10. Discuss quality control tests needed for digital imaging procedures.
11. Discuss the basic elements of a quality administration program.
12. Detail the importance of operator competence in dental radiographic procedures.

Chapter 11 - Dental Images and the Dental Radiographer

1. Define the key terms associated with dental images.
2. Discuss the importance of dental images.
3. List the uses of dental images.
4. Discuss the benefits of dental images.
5. List examples of common dental conditions that may be evident on a dental image.
6. Discuss the knowledge and skill requirements of the dental radiographer.
7. List the duties and responsibilities that may be assigned to the dental radiographer.
8. Discuss the professional goals of the dental radiographer.

Chapter 12 - Patient Relations and the Dental Radiographer

1. Define the key terms associated with patient relations.
2. Discuss verbal, nonverbal, and listening skills, and explain how each can be used to enhance communication.
3. Discuss how facilitation skills can be used to enhance patient trust.
4. Define a relationship of trust between the dental professional and the patient.
5. Discuss the importance of first impressions, chairside manner, and attitude and explain how each can enhance patient relations.

Chapter 13 - Patient Education and the Dental Radiographer

1.  Define the key terms associated with patient education.

2.  Summarize the importance of educating patients about dental images.

3.  List the three methods that can be used by the dental radiographer to educate patients about dental images.

4.  Answer common patient questions about the needs for dental images, x-ray exposure, the safety of dental x-rays, digital imaging, and other miscellaneous concerns.

Chapter 14 - Legal Issues and the Dental Radiographer

1.  Define key terms associated with legal issues.

2.  List federal and state regulations affecting the use of dental x-ray equipment and describe the general application of federal and state regulations relating to the dental auxiliary.

3.  Describe licensure requirements for exposing dental images.

4.  Discuss risk management and define the legal concept of informed consent.

5.  Describe ways to obtain informed consent from a patient.

6.  Discuss dental malpractice issues, including negligence and standard of care.

7.  Discuss the concept of statute of limitations and the legal significance of the dental record.

8.  Discuss how confidentiality laws affect the information in the dental record.

9.  Describe the patient's rights with regard to the dental record.

10.Describe the legal implications of patient refusal to have dental x-ray images exposed.

Chapter 15 - Infection Control and the Dental Radiographer

1.  Define the key terms associated with infection control.

2.  Describe the rationale for infection control.

3.  Describe the three possible routes of disease transmission.

4.  Describe the conditions that must be present for disease transmission to occur.

5.  Discuss personal protective equipment (PPE), hand hygiene, sterilization and disinfection of instruments, and the cleaning and disinfection of the dental unit and environmental surfaces.

6.  Describe the infection control procedures that are necessary before x-ray exposure.

7.  Describe the infection control procedures that are necessary during x-ray exposure.

8.  Describe the infection control procedures that are necessary after x-ray exposure.

9.  Describe the infection control procedures that are necessary for digital imaging.

10.  Describe the infection control procedures that are necessary for film processing.

11.  Discuss film handling in the darkroom - with and without barrier envelopes.

12.  Discuss film handling without barrier envelopes using the daylight loader of an automatic processor.

Chapter 16 - Introduction to Dental Imaging Examinations

1.  Define the key terms associated with dental imaging examinations.

2.  List the three types of intraoral imaging examinations.

3.  Describe the purpose, the type of receptor, and the technique used for each of the three types of intraoral imaging examinations.

4.  List the various projections that constitute a complete mouth series (CMS).

5.  List the general diagnostic criteria for intraoral images.

6.  List examples of extraoral imaging examinations.

7.  Discuss the prescribing of dental images.

8.  Describe when prescribing a CMS for a new patient is warranted.

Chapter 17 - Paralleling Technique

1.  Define the key terms associated with the paralleling technique.

2.  State the basic principle of the paralleling technique and illustrate the placement of the receptor, beam alignment device, position-indicating device (PID), and central ray.

3.  Discuss how object-receptor distance affects the image and how target-receptor distance is used to compensate for such changes.

4.  Describe why a beam alignment device is necessary with the paralleling technique.

5.  List the beam alignment devices that can be used with the paralleling technique.

6.  Identify and label the parts of the Rinn XCP instruments.

7.  Describe the different sizes of receptors used with the paralleling technique and how each receptor is placed in the bite-block.

8.  State the five basic rules of the paralleling technique.

9.  Describe the patient and equipment preparations that are necessary before using the paralleling technique.

10.  Discuss the exposure sequence for 15 periapical receptor placements using the paralleling technique; describe each of the 15 periapical receptor placements recommended for use with the Rinn XCP instruments.

11.  Summarize the guidelines for periapical receptor positioning.

12.  Explain the modification in the paralleling technique that are used for a patient with a shallow palate, bony growths, or a sensitive premolar region.

13.  List the advantages and disadvantages of the paralleling technique.

Chapter 18 - Bisecting Technique

1.  Define the key terms associated with the bisecting technique.

2.  State the rule of isometry.

3.  State the basic principles of the bisecting technique and illustrate the location of the film, tooth imaginary bisector, central ray, and position-indicating device (PID).

4.  List the beam alignment devices and receptor holders that can be used with the bisecting technique.

5.  Describe the receptor size used with the bisecting technique.

6.  Describe correct and incorrect horizontal angulation.

7.  Describe correct and incorrect vertical angulation.

8.  State each of the recommended vertical angulation ranges used for periapical exposures in the bisecting technique.

9.  State the basic rules of the bisecting technique.

10. Describe patient and equipment preparations necessary before using the bisecting technique.

11. Discuss the exposure sequence used for the 14 periapical receptor placements used in the bisecting technique.

12. Describe each of the 14 periapical receptor placements recommended for use in the bisecting technique.

13. List the advantages and disadvantages of the bisecting technique.

Chapter 19 - Bite-Wing Technique

1.  Define the key terms associated with the bite-wing technique.

2.  Describe the purpose and use of the bite-wing image.

3.  Describe the appearance of opened and overlapped contact areas on a bite-wing image.

4.  State the basic principles of the bite-wing technique.

5.  List the two ways a receptor can be stabilized in the bite-wing technique and identify which one is recommended for bite-wing exposures.

6.  List the three receptor sizes that can be used in the bite-wing technique and identify which size is recommended for exposures in the adult patient.

7.  Describe correct and incorrect horizontal angulation.

8.  Describe the difference between positive and negative vertical angulation.

9.  State the recommended vertical angulation for all bite-wing exposures using a bite-wing tab.

10.  State the basic rules for the bite-wing technique.

11.  Describe patient and equipment preparations that are necessary before using the bite-wing technique.

12.  Discuss the exposure sequence for a complete mouth series (CMS) that includes both periapical and bite-wing exposures.

13.  Describe the correct premolar and molar bite-wing receptor placements.

14.  Describe the purpose and use of vertical bite-wing images.

15.  List the number of exposures and the size of the receptor used in the vertical bite-wing technique.

16.  Discuss modifications in the bite-wing technique for patients who have edentulous spaces or bony growths.

Chapter 20 - Exposure and Technique Errors

1. Define the key terms associated with exposure and technique errors.
2. Identify and describe the appearance of the following exposure errors: unexposed receptor, film exposed to light, overexposed receptor, and underexposed receptor.
3. Identify and describe the appearances of the following periapical technique errors due to receptor placement: absence of apical structures and dropped receptor corner.
4. Describe horizontal and vertical angulation.
5. Identify and describe the appearances of the following periapical technique errors due to angulation problems: incorrect horizontal angulation (overlapped contacts), incorrect vertical angulation (foreshortened images and elongated images), and incorrect beam alignment (cone-cut images).
6. Describe and identify proper receptor placement for bite-wing images.
7. Identify and describe the appearances of the following bite-wing technique errors due to receptor placement: incorrect placement of premolar bite-wing and incorrect placement of molar bite-wing.
8. Identify and describe the appearances of the following bite-wing technique errors due to angulation problems: incorrect horizontal angulation (overlapped contacts), incorrect vertical angulation (distorted image), and incorrect position-indicating device (PID) alignment (cone-cut images).
9. Identify and describe the appearances of the following miscellaneous technique errors: bending, creasing, debris accumulation, phalangioma, double image, movement, and reversed/backward placement.

Chapter 21 - Occlusal and Localization Techniques

1. Define the key terms associated with occlusal and localization techniques.
2. Describe the purpose of occlusal examination.
3. List the uses of occlusal examination and discuss the basic principles involved.
4. Describe the patient and equipment preparations that are necessary before using the occlusal technique.
5. State the recommended vertical angulations for the following maxillary occlusal projections: topographic, lateral (right or left), and pediatric.
6. State the recommended vertical angulations for the following mandibular occlusal projections: topographic, cross-sectional, and pediatric.
7. State the purpose of localization techniques and list their uses.
8. Describe the buccal object rule.
9. Describe the right-angle technique.
10. List the patient and equipment preparations that are necessary before using the buccal object rule or the right-angle technique.
11. Describe receptor placements for the buccal object rule and compare the resulting images.
12. Describe receptor placements for the right-angle technique and compare the resulting images.

Chapter 22 - Panoramic Imaging

1.  Define the key terms associated with panoramic imaging.

2.  Describe the purpose and uses of panoramic imagining.

3.  Describe the fundamentals of panoramic imaging.

4.  Describe the equipment used in panoramic imaging.

5.  Describe patient preparation, equipment preparation, and patient positioning procedures needed before exposing a panoramic projection.

6.  Describe a diagnostic panoramic image.

7.  Identify the patient preparation and patient positioning errors seen on panoramic images, discuss the causes of these errors, and describe the necessary measures needed to correct such errors.

8.  Discuss the advantages and disadvantages of panoramic imaging.

Chapter 23 - Extraoral Imaging

1. Define the key terms associated with extraoral imaging.
2. Describe the purpose and uses of extraoral imaging.
3. Describe the equipment used in extraoral imaging.
4. Detail the equipment and patient preparations necessary before exposing an extraoral projection.
5. Identify the purpose and describe the head position, the receptor placement, and the beam alignment for each of the following extraoral projections: lateral jaw projection—body of the mandible, lateral jaw projection—ramus of the mandible, lateral cephalometric projection, posteroanterior projection, Waters projection, submentovertex projection, reverse Towne projection, and transcranial projection.

Chapter 24 - Imaging of Patients with Special Needs

1. Define the key terms associated with patients who have special needs.
2. List the areas of the oral cavity that are most likely to elicit the gag reflex when stimulated.
3. List two precipitating factors responsible for initiating the gag reflex.
4. Describe how to control the gag reflex using operator attitude, patient and equipment preparations, exposure sequencing, and receptor placement and technique.
5. Describe common physical disabilities and what modifications in technique may be necessary during the imaging examination.
6. Describe common developmental disabilities and what modifications in technique may be necessary during the imaging examination.
7. List helpful hints that can be used when treating a person with a disability.
8. Describe the tooth eruption sequences, prescribing of dental images, recommended techniques, types of examinations, digital sensor issues, patient and equipment preparation, and patient management pertaining to the pediatric dental patient.
9. Describe the use of receptor placement modifications and recommended periapical technique during endodontic (root canal) procedures.
10. Describe the purposes of the imaging examination in the edentulous patient.
11. List and describe the three types of imaging examination that may be used for the edentulous patient.

Chapter 25 - Digital Imaging

1.  Define the key terms associated with digital imaging.
2.  Describe the purpose and use of digital imaging.
3.  Discuss the fundamentals of digital imaging.
4.  Describe radiation exposure in digital imaging.
5.  List and describe the equipment used in digital imaging.
6.  List and describe the two types of digital imaging.
7.  Describe the patient and equipment preparations required for digital imaging.
8.  List and discuss the advantages and disadvantages of digital imaging.

Chapter 26 - Three-Dimensional Digital Imaging

1.  Define the key terms associated with three-dimensional digital imaging.
2.  Describe the fundamentals of three-dimensional digital imaging.
3.  Describe the training needed and equipment used in three-dimensional digital imaging.
4.  Discuss the common uses of three-dimensional digital imaging.
5.  Detail the equipment and patient preparation necessary before exposure to x-radiation using three-dimensional digital imaging.
6.  Identify advantages and disadvantages of three-dimensional digital imaging.

Chapter 27 - Normal Anatomy: Intraoral Images

1. Define the key terms associated with normal anatomy on intraoral images.
2. State the difference between cortical and cancellous bone.
3. Define and discuss the general terms that describe prominences, spaces, and depressions in bone.
4. Do the following related to normal anatomic landmarks of the maxilla on a human skull.

• Identify and describe the normal anatomic landmarks of the maxilla on a human skull.
• Identify and describe the normal anatomic landmarks of the maxilla as viewed on dental images.
• Identify each normal landmark of the maxilla as either radiolucent or radiopaque as viewed on dental images.

5. Do the following related to normal anatomic landmarks of the mandible on a human skull:

• Identify and describe the normal anatomic landmarks of the mandible on a human skull.
• Identify and describe the normal anatomic landmarks of the maxilla as viewed on dental images.
• Identify each normal landmark of the mandible as either radiolucent or radiopaque as viewed on dental images.

6. Identify and describe the appearance of normal tooth anatomy and supporting structures as viewed on dental images; identify each normal tooth structure as radiolucent or radiopaque as viewed on dental images.
7. Identify the primary teeth and eruption patterns of the permanent teeth as viewed on dental images.

Chapter 28 - Film Mounting and Viewing

1. Define the key terms associated with film mounting and viewing.
2. Do the following related to film mounting:

• Define film mounting.
• List the individuals who are qualified to mount and view dental radiographs.
• Describe when and where films are mounted.
• List several reasons to use a film mount.
• Describe what information is placed on a film mount.
• Describe how mounts are used with digital imaging.

3. Discuss the importance of normal anatomy in film mounting.
4. Describe how the identification dot is used to determine film orientation.
5. List and describe two methods of film mounting and identify the preferred method.
6. List and describe the step-by-step procedures for film mounting.
7. Do the following related to viewing film:

• List the individuals who are qualified to view film.
• List and describe the necessary equipment for film viewing.
• Discuss the importance of masking extraneous viewbox light seen around a film mount.
• Describe optimal viewing conditions, as well as when and where images should be viewed.
• Explain the importance of examining images in an established viewing sequence.

8. List and describe the step-by-step procedures for film viewing and explain why multiple viewings of dental images are necessary, as well as list the areas, diseases, and abnormalities that must be included in the examinations.

Chapter 29 - Normal Anatomy: Panoramic Images

1. Define the key terms associated with normal anatomy on panoramic images.
2. Identify and describe the bony landmarks of the maxilla and surrounding structures as viewed on the panoramic image.
3. Identify and describe the bony landmarks of the mandible and surrounding structures as viewed on the panoramic image.
4. Identify air spaces as viewed on the panoramic image.
5. Identify soft tissues as viewed on the panoramic image.

Chapter 30 - Introduction to Image Interpretation

1.  Define the key terms associated with interpreting images.
2.  Summarize the importance of the interpretation of images.
3.  Describe who is able to interpret images by defining the roles of the dentist and the dental auxiliary in the interpretation of dental images.
4.  Discuss the difference between interpretation and diagnosis.
5.  Describe when and where dental images are interpreted.
6.  Discuss the sequence for interpreting images.
7.  Describe how interpretation is documented.
8.  Describe how interpretation can be used to educate the dental patient about the importance and use of dental images.

Chapter 31 - Descriptive Terminology

1.  Define descriptive terminology, describe why the dental professional should use descriptive terms, and differentiate between descriptive terminology and diagnosis.
2.  Compare and contrast the terms radiolucent and radiopaque.
3.  Do the following related to how to describe radiolucent lesions:

• Identify radiolucent lesions on a dental image in terms of appearance, location, and size.
• Define and discuss the terms unilocular and multilocular.
• Define and discuss the terms periapical, inter-radicular, edentulous zone, pericoronal, and alveolar bone loss in relation to radiolucent lesions

4. Do the following related to how to describe radiopaque lesions:

• Identify radiopaque lesions on a dental image in terms of appearance, location, and size.
• Define and discuss the terms focal opacity, target lesion, multifocal confluent pattern, irregular/ill-defined opacity, ground glass opacity, mixed lucent-opaque lesion, and soft tissue opacity.
• Define and discuss the terms periapical, inter-radicular, edentulous zone, and pericoronal in relation to radiopaque lesions.

Chapter 32 - Identification of Restorations, Dental Materials, and Foreign Objects

1. Define the key terms associated with identifying restorations, materials, and foreign objects on dental images.
2. Discuss the importance of interpreting dental images while the patient is present.
3. On dental images, identify and describe the appearance of the following restorations: amalgam, gold, stainless steel and chrome, post and core, porcelain, porcelain-fused-to-metal, composite, and acrylic.
4. On dental images, identify and describe the appearance of the following: base materials, metallic pins, gutta percha, silver points, complete dentures, removable partial dentures, orthodontic bands, brackets and wires, fixed orthodontic retainers, dental implants, bone grafts, suture wires, metal splints and plates, bone screws, and stabilizing arches.
5. On dental images, identify and describe the appearance of the following: earrings, necklaces, nose jewelry, eyeglasses, patient napkin chains, hearing aids, shrapnel, and other miscellaneous objects.

Chapter 33 - Interpretation of Dental Caries

1. Define the key terms associated with the interpretation of dental caries.
2.  Describe dental caries.
3.  Do the following related to the detection of dental caries:

• Explain why caries appears radiolucent on a dental image.
• Discuss the importance of dental caries in relation to the clinical examination.
• Discuss the importance of dental caries in relation to the dental image examination.

4. Discuss interpretation tips for evaluating caries on a dental image.
5. Discuss the factors that may influence the image interpretation of dental caries.
6. Do the following related to classifying caries on dental images:

• Detail the classification of caries on dental images.
• On a dental image, identify and describe the appearance of the following: incipient, moderate, advanced, and severe interproximal caries.
• On a dental image, identify and describe the appearance of the following: incipient, moderate, and severe occlusal caries.
• On a dental image, identify and describe the appearance of the following: buccal, lingual, root surface, recurrent, and rampant caries.

7. On a dental image, identify conditions that may be confused with dental caries including cervical burnout, restorative materials, attrition, and abrasion.

Chapter 34 - Interpretation of Periodontal Disease

1. Define the key terms associated with interpreting periodontal disease.
2. Describe the healthy periodontium.
3. Briefly describe periodontal disease.
4. Do the following related to the detection of periodontal disease:

• Discuss the importance of the clinical examination.
• Discuss the importance of dental image examination, including different techniques used.
• Describe the limitations of dental images in the detection of periodontal disease.
• Describe the type of dental images that should be used to document periodontal disease and the preferred exposure technique.

5. Do the following related to the interpretation of periodontal disease on dental images:

• State the difference between horizontal bone loss and vertical bone loss.
• State the difference between localized bone loss and generalized bone loss.
• State the differences among mild, moderate, and severe bone loss.

6. List the American Dental Association (ADA) case types and describe the corresponding appearance on dental images and recognize the ADA case types on dental images.

7. List predisposing factors for periodontal disease and recognize and describe the appearance of calculus on dental images.

Chapter 35 - Interpretation of Trauma, Pulpal Lesions, and Periapical Lesions

1. Define the key terms associated with the interpretation of trauma, resorption, pulpal and periapical lesions as viewed on a dental image.
2. Describe and identify the appearance of crown, root, and jaw fractures as viewed on a dental image.
3. Describe and identify the appearance of a luxation and an avulsed tooth as viewed on a dental image.
4. Describe and identify the appearance of external and internal resorption as viewed on a dental image.
5. Describe and identify the appearance of pulpal sclerosis, pulp canal obliteration, and pulp stones as viewed on a dental image.
6. Discuss periapical radiolucencies and describe the appearance of periapical granuloma, cyst, and abscess as viewed on a dental image, as well as explain what is necessary to establish a definitive diagnosis.
7. Discuss periapical radiopacities and describe and identify the appearance of condensing osteitis, sclerotic bone, and hypercementosis as viewed on a dental image.

Students Rights and Responsibilities

Student Rights and Responsibilities

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Expected Student Behavior

Student Conduct and Responsibilities

A high standard of conduct is expected of all Amarillo College students.  The Student Code of Conduct is defined in the Amarillo College Student Rights and Responsibilities publication. This document may be located online at http://catalog.actx.edu/content.php?catoid=7&navoid=291#StudentConduct .

 

“Amarillo College expects a high standard of conduct from its students. Students are expected to comply with the law, respect proper constitutional authority, and obey College policies, rules and regulations. Unacceptable conduct is defined as an action or behavior that is contrary to the best interest of a fellow student or students, the faculty or staff, the College, or the teaching/learning process. Students failing to perform according to established standards may be subject to disciplinary action.  Policies, standards, rules and regulations apply to students attending College activities whether the activity takes place on or off campus. 

Each student shall be responsible for becoming knowledgeable of the contents and provisions of College policies, rules, and regulations concerning student conduct. In some cases, individual programs may have approved policies for student conduct which also apply to student conduct in those programs.”

 

The Amarillo College Dental Hygiene Program has specific policies which apply to student conduct within the program.  These policies may be implied or written.  The course syllabus and the student manual are sources for specific student conduct policies for dental hygiene students at Amarillo College.

 

Professional Standards

All dental hygiene students are expected to demonstrate professionalism in behavior, manner, and judgment in the dental hygiene clinic and voluntary enrichment rotations.  The area of professionalism includes appearance, asepsis, patient management, peer, faculty and staff interaction, and documentation.  Guidelines for professionalism and professional appearances are discussed in the AC Dental Hygiene Clinic Manual.  Professionalism will be evaluated on a continual basis.

Students will exhibit professional maturity and an acceptable level of clinical judgment as determined by the faculty.  Unprofessional behavior may be defined as a continual pattern of misconduct and/or an egregious act that endangers the health of the patients, students, faculty, and/or College.  Egregious acts also include violations of the Texas Dental Hygiene Practice Act or falsification of patient records and/or faculty signatures.

Students must be competent in the application of the principles of ethical reasoning, ethical decision making and professional responsibility as they pertain to patient care.  Dental hygienists should understand and practice ethical behavior consistent with the professional code of ethics throughout the educational experiences.  The following are examples which are considered professional standards.  These are representative examples and may not be all inclusive. 

• Students are concerned with excellence in learning rather than just meeting minimal criteria.
• Students maintain composure, dealing with conflict in a constructive way.
• Students exhibit an attitude of respect for classmates, faculty, and staff.  If a student has a conflict with a grade given by the instructor, the student must follow the outlined grievance procedure.  Faculty will not change a grade given to a student from another faculty member.

 

Safety:  Individual Responsibility

This course supports the Amarillo College policies regarding responsibility for a safe environment.

Amarillo College is in compliance with environmental, health and safety regulations, and therefore requires that all AC employees, students, and visitors comply to maintain a safe environment.

Report hazardous conditions and safety concerns immediately to their supervisors, instructors, staff, and/or emergency management personnel, as appropriate.

Abide in safe practices and procedures established by the College.

Adhere to and cooperate fully with all local, state, and federal regulations concerning environmental, health, and safety issues.

Take action to resolve workplace issues when appropriate.

Statement of Confidentiality

Confidentiality is the duty owed by dental hygiene professionals, including students enrolled in Dental Hygiene accredited programs, to protect the privacy of all patient information.  Dental Hygiene professionals clearly have an obligation to keep MEDICAL and PERSONAL information about patients in the strictest confidence at all times.  Unless disclosure is mandated by patient consent, statute, a duty to inform third parties, or special circumstances, dental hygiene professionals have a clear duty to maintain the confidentiality of all patient information.

Breach of duty to hold such information in the strictest confidence may cause liability for the individual student such as fines, imprisonment, and dismissal from the program.  In the professional “Code of Ethics”, the American Dental Hygienists’ Association Code of Ethics for dental hygienists has published the following statement which all dental hygiene professionals (including students) must always follow:

“We respect the confidentiality of client information and relationships as a demonstration of the value we place on individual autonomy.  We acknowledge our obligation to justify any violation of confidence.”

Instructor Help and Student Participation

It is very important that you seek faculty input regarding your performance so that you may:

• Gain confidence in your performance
• Identify problem areas and determine methods for correcting deficiencies
• Attain competence

All students are considered mature enough to seek faculty assistance and to monitor their own progress.  Please meet with your assigned instructor as soon as possible if you have questions or difficulties in this course.  Faculty are committed to supporting your success.  Please remember, however, that you are the only person who can make us aware that you need assistance.

Amarillo College Dental Hygiene Mentoring Program

The student has a very important role in the mentoring process.  Each student will be assigned a mentor at the beginning of the semester.  The mentor/mentee list will be posted in the locker room and emailed to each student.  As partners in the mentoring relationship, students have responsibilities to:

• Contact mentors and arrange for a mentoring appointment:  1 in February and 1 in April
• Be aware of their mentoring needs and discuss these needs with mentors
• Maintain regular communication with their assigned mentors

Prepare for mentoring meetings by:

• Setting daily and weekly goals for program progression
• Assessing attainment of these goals
• Identifying impediments to achieving these goals

It is the student’s responsibility to contact mentors and arrange appointments.  Failure to arrange and/or keep appointments will result in a two-point deduction from the final course grade for each occurrence in the semester.

Mandatory Tutoring

In an effort to increase student success in DHYG courses, and to assist students having difficulty understanding complex subject areas, any student who scores below a 75% on any assessment (excluding the final) must meet with faculty and complete mandatory tutoring before taking the next assessment.

 

Cell Phone and Electronic Device Policy

Cell phones and other electronic devices may detract from the learning environment.  For this reason, they should be silenced and put away out of view before entering the classroom.  The personal use of cell phones in the classroom is not permitted.  Cell phones may be checked at designated break times.  Students who choose to violate the cell phone policy in class will receive a 0.

Mailboxes

Each student is assigned a mailbox located inside the student locker room.  Students are required to check his/her mailbox daily for various communication from faculty.

 

Emergency Contacts

Phone numbers that family members may use to reach you only in case of emergencies are as follows:

354-6050 - Dental Hygiene Office Supervisor                           

371-5163 - Amarillo College Police                      

Academic Grievances

A student who has a grievance concerning an academic course in which he or she is enrolled is directed to appeal in the following order to the:  (1) Instructor (2) Department Chair/Program Director (3) Associate Dean of Health Sciences - Kim Boyd (4) Dean of Health Sciences - Kim Crowley (5) Associate VP of Academic Services - Becky Burton (6) Vice President of Academic Affairs - Dr. Tamara Clunis.

Grading Criteria

Assignments and Examinations

The following criteria will be used to determine the student’s grade:

The course will consist of chapter examinations, quizzes, online and homework assignments, lab projects, professionalism in lab, and a comprehensive final examination. Please note the provisions of the Make-up Policy in this syllabus for missed examinations. 

Laboratory Assignments

The laboratory x-ray machines are used in the digital mode and the student will be required to capture images using sensor receptors and will learn to record the images in the proper format in the patient’s chart during each lab period.  Attire for radiology lab must follow the guidelines of lab or clinical attire discussed in the Amarillo College Dental Hygiene Student Handbook. The following assignments must be completed in order to complete the course.  The criteria for quality assessment and the grading of lab radiographs will be based on the Criteria for Clinical Radiographs which includes the policies that will also be utilized in Clinic II, Clinic III, and Clinic IV.  The Criteria for Clinical Radiographs policy is included the Amarillo College Dental Hygiene Student Handbook.  The student is expected to utilize the Criteria for Clinical Radiographs as a guide to the assessment of the films taken in laboratory and clinical sessions.

Please note that the retake policy in the Criteria for Clinical Radiographs applies to clinic patient radiographs and will not be applied to Dexter Manikin Radiographic sets.  Students are allowed to utilize the Dexter Practice sessions to learn to expose, process, and assess errors, and may take unlimited retakes until the student is confident in their technique.

The following Lab Assignments will be completed by the student in radiology lab sessions utilizing digital sensors and manikins:

Bitewing and Full Mouth Radiographic Surveys:

10 Bitewing Surveys

• 5 Horizontal surveys on 5 different Dexter manikins

• 3 Vertical surveys on 3 different Dexter manikins

• 1 Horizontal BWX Exit Examination on a Dexter manikin

• 1 Vertical BWX Exit Examination on a Dexter manikin

8 Full mouth radiographic surveys using the Paralleling Technique 

• 4 Adult -18 image surveys completed on 4 different Dexter Manikins using the Paralleling Technique
• 2 surveys on a pedodontic typodont
  • 1 Early Eruptive Stage Survey (8 Images)
  • 1 Mixed Dentition Stage Survey (12 Images)
• 1 Full Mouth Exit Examination completed on a Dexter manikin using the Paralleling Technique
• 1 Full Mouth Experience completed on a live patient/lab partner and critiqued for technical errors and landmarks. (FMX Interpretation Project).

Accessory Techniques:

Each accessory techniques will be taught to laboratory competency and will be graded as instructed on the competency form for each technique.

• Bisecting the Angle Technique (Periapical radiographs will be practiced using the bisecting angle receptor stabilization device.)
  • 1 set will be exposed on a Dexter manikin. Using half of the mouth for technique practice, and half of the mouth to prove competency.
• Students will complete an Exit Exam by exposing half of a Dexter manikin's mouth to competency.

• Occlusal Competency exercise will be completed as outlined on (maxillary and mandibular arches) on an Adult typodont and on a Pedodontic typodont.

• Localization Competency exercise (SLOB Rule). 

• Phosphor plates will be utilized to expose 2 sets of HBWS which will then be developed and mounted in the patient chart utilizing the Scan-X processor.

• The Nomad portable x-ray machine will be utilized to expose 1 set of Horizontal BWXS and 1 set of Vertical BWXS.  

Phosphor Plates, Scan X and the Nomad

The proper care and use of Phosphor Plates, the Scan-X, and the Nomad portable X-ray machine will be taught and each student must pass a written test on the Care and Use of the Phosphor Plates and the Scan X machine and another exam will be administered on the care and use of the Nomad machine.  The examinations must be passed with a grade of 80%.  After the written exam is passed on the phosphor plates/Scan X and the Nomad, the student will be required to complete prescribed laboratory exercises on a manikin using each type of equipment to competency level of achievement.

 

Laboratory Professionalism

The student will be expected to maintain a professional attitude and personal responsibility as they work to complete the assignments and learning experiences in the Dental Radiology Laboratory.  Each day in the laboratory, a Professionalism Grade Form must be assessed and signed by a laboratory instructor in order for the student to receive a grade for that laboratory session.  The student must keep this grade form in their Radiology Lab Folder and have the laboratory instructor complete the form at the end of the session or the grade will be a “zero”.  Any deduction on the form due to student error will be assessed as a “zero”.  No deduction in grade will be assessed as a “100” for the day.  At the end of the semester, the professionalism grades will be averaged to form one grade which will count for ten percent of the student;s semester grade. The grade will be based on the following.  These are representative samples but not limited to:

• Attendance: 
  • Student is present and has the needed supplies for the laboratory session
  • Student arrives on time and stays until the session has been completed
• Professional Behavior:
  • Student exemplifies the behaviors of professional standards as listed above
  • Student communicates with instructors, peers, and patients in an appropriate manner which demonstrates a willingness to understand while listening and with a desire to respond to their questions or need for information appropriately
• Equipment Maintenance:
  • The equipment in the laboratory and clinical areas are very expensive and sometimes fragile and must be handled properly to insure that no harm is done to the equipment. 
    • Room logs must be signed when the student initiates the use of a laboratory.
    • The student must properly clean equipment and return all equipment in the room to the proper storage position.
• Infection Control:
  • The student will always wear the proper PPE in the Laboratory.
  • The student will always disinfect all equipment at the end of the session and prepare receptor positioning devices for sterilization
• Dosimeter Badges and Safety:
  • The student must wear their dosimeter badges every laboratory session so that accurate readings will be available in the event that the student is accidentally exposed to radiation.
  • The student will make sure that the walkway in front of their laboratory room is clear prior to pushing the button to complete the exposure of radiation.

Grading Criteria

The final course grade will be computed as follows:

35%   Chapter Tests                                                          

10%   Homework, Workbook Assignments, and Pop Quizzes             

25%   Comprehensive Final Examination                                               

20%   Lab Assignments                                                     

10%   Laboratory Professionalism

The following grade scale applies throughout this course:

A = 93 - 100%            

B = 83 - 92%

C = 75 - 82%

F = below 75%

Note:  A grade of "D" is not possible in this course.

In order to pass the course, a student must achieve a final grade of 75% and meet all requirements of the course.  All students are considered mature enough to seek faculty assistance and to monitor their own progress in meeting course requirements.  Students who continually fall below the minimal level of 75% on graded material should seek assistance from the course faculty.

Make-up Policy

A student will not be allowed to make-up quizzes, as a zero will be given for each missed quiz.  If a student is absent on the day when a major examination is given, the student may make-up the missed work as follows:

1. It is the responsibility of the student to make arrangements with the instructor within 24 hours of returning from the absence to reschedule the examination.
2. The missed work must be made up within TWO Amarillo College school days where the day ends at 4:00 p.m.
3. The makeup work may earn a maximum of 80% of the original point value.    

Attendance

Attendance Policy

“Regular attendance is necessary for satisfactory achievement. Therefore, it is the responsibility of the student to attend class in accordance with the requirements of the course as established by the instructor.”  (Amarillo College Student’s Rights and Responsibilities Publication)

 

Due to the tremendous amount of information contained in this course, the student who plans to succeed should also plan to attend all course sessions regularly and promptly.  Without question, the instructor expects each student to be present at each session.  Unfortunately, no one has ever developed a short cut which will replace hours of actual experience needed to master a new skill; therefore, students must be present to acquire the specific knowledge in this subject. 

 

Absences will be monitored and evaluated to determine the student’s final course grade.  The student may have no more than 1 absence in this course without affecting the final grade.  Beginning with the 2^nd absence, 2 points will be deducted from the final grade; on the 3^rd absence, 3 points will be deducted; on the 4^th absence, 4 points will be deducted.  On the occurrence of the 5^th absence, the student will fail the course and be required to repeat the course.  Attendance will be taken at the beginning of each lecture and lab session.  Students not present when attendance is taken will be counted as absent. The student is expected to be present in class at the time class/lab is scheduled to begin. STUDENTS, WHO ARE LATE TO CLASS OR LAB OR WHO LEAVE CLASS OR LAB EARLY, WILL BE COUNTED AS ABSENT.  The student will receive 2 bonus points to the final grade of this course if the student has perfect attendance for the semester.   

Calendar

Additional Information

Please Note: Lecture and/or Laboratory schedule(s) may be subject to change at the discretion of the Course Director.