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Effective: Summer 2011

Grade Type: Letter Grade Only
Not Repeatable.
FHGE: Non-GE Transferable: CSU
3 hours laboratory. (36 hours total per quarter)

Student Learning Outcomes -
  • The student will be able to produce a diagnostic panoramic radiograph.
  • The student will be able to recognize four normal anatomical landmarks on the panoramic radiograph
Description -
Continuation of DA 53B. Intraoral technique and film evaluation skills practiced on mannequins and performed on patients. Emphasis on endodontic, occlusal distal-oblique and digital radiographs. Intended for students in the Dental Assisting Program; enrollment is limited to students accepted in the program.

Course Objectives -
Expected Outcomes & Dental Assisting Program Competencies
The student will be able to:
Dental Assisting Theory and Practice
  1. As prescribed by the dentist,
    1. Expose a diagnostically useful 6 film bitewing survey with no more than two retakes.
    2. Process and mount the bitewing survey without errors.
    3. Expose a diagnostically useful 20 film full mouth survey with no more than 4 retakes.
    4. Process and mount the full mouth survey without errors.
  2. accurately record the radiographic procedure performed in a patient's dental chart
  3. Exhibit attentiveness to patient fears toward radiation
  4. Expose on a mounted mannequin, an upper and lower occlusal film demonstrating:
    1. proper density and contrast
    2. adequate view of the area being survey
  5. Produce a diagnostic digital panoramic radiograph.
Infection Control and Hazardous Waste Management
  1. demonstrate correct infection control procedures in the lab for the prevention of cross contamination.
  2. demonstrate the proper disposal of lead foil
Ethical and Legal Principles
  1. list the types of illegal computer modification that can be made with digital radiographs.
  2. demonstrate nonmaleficence or first, "do no harm" to each patient by placing a lead shield prior to radiation exposures.
Special Facilities and/or Equipment -
  1. Gown, safety glasses, masks, and gloves.
  2. X-ray laboratory,darkroom facility, mannequin, panoramic unit, view boxes, film, digital sensors and digital scanner.

Course Content (Body of knowledge) -
  1. Digital Radiography (Lab)
    1. analog image vs. digital image
    2. pixel
    3. sensor
    4. storage phosphor
    5. processing vs.scanning
    6. computer software
  2. Normal Anatomy on Panoramic Radiographs (Lab)
    1. anterior nasal spine
    2. articular eminence
    3. coronoid notch
    4. coronoid process
    5. genial tubercle
    6. hard palate
    7. incisive foramen
    8. mandibular canal
    9. mental foramen
    10. maxillary sinus
    11. maxillary tuberosity
    12. nasal cavity
    13. nasal septum
    14. hyoid bone
    15. zygomatic process
  3. Maxillary and Mandibular Occlusal Projections (Lab)
    1. purpose for occlusal radiographs
    2. film size
    3. patient preparation
    4. equipment preparation
    5. vertical angulations of tubehead
Methods of Evaluation -
Including but not limited to lab assignments, patient requirements and quizzes. Students analyze and evaluate all prescribed dental radiographs for diagnostic quality. Application of technical corrections are applied to diagnostic errors.
Representative Text(s) -
Iannucci, Howerton. Dental Radiography. 3rd Edition. Saunders. 2006 ISBN# 13 978-0-7216-1575-2
Yamamoto, Judy. Radiology Lecture Syllabus, 2011
Yamamoto, Judy. Radiology Lab Policy and Information Manual 2010-2011

Disciplines -
Dental Assisting
Method of Instruction -
Laboratory demonstration and observation. Film grading and feedback on all radiographs taken on patients.
Lab Content -
Lab exercises include occlusal film exposures, panoramic film exposures, and digital periapical radiographs on DXTTR will be performed. The student will accomplish dental assisting skills in appointment planning, patient requirements and correct documentation for chart entry.
Types and/or Examples of Required Reading, Writing and Outside of Class Assignments -
  1. Chapters include localization techniques,(chap.21) extraoral radiography (chap. 28) normal anatomical landmarks (chap 26) and interpretation of digital radiographs (chap. 24)
  2. Read to compare and contrast two research articles. "The Right of Refusal" Dimensions of Dental Hygiene, Aug. 2008 (pg. 1-2) and "Are Dental Radiographs Safe?" Australian Dental Journal, 2000 45:3