Apr 15, 2024  
2021-2022 College Catalog 
2021-2022 College Catalog [ARCHIVED CATALOG]

DHE 116 - Oral Radiography

2 Credits, 2 Contact Hours
2 lecture periods 0 lab periods

Principles of dental radiography as a diagnostic aid. Includes radiation production and biology. Also includes clinic experience in exposing, processing, mounting, and interpreting radiographs on mannequins and patients using a variety of radiographic techniques.

Corequisite(s): DHE 101 , DHE 101LC , DHE 104 , DHE 104LB , DHE 107 , DHE 112 , DHE 116LC  
Information: Students must be admitted to the PCC Dental Hygiene program and obtain consent of the Dental Hygiene department before enrolling in this course. DAE 163  can be substituted for DHE 116 if completed within the last three years, see academic advisor or faculty for information regarding course substitution. To substitute DAE 163  for DHE 116, student must have current CDA certification.

Course Learning Outcomes
  1. State, identify and demonstrate the principles and methods of radiation production and safety. 
  2. Interpret and identify normal and abnormal pathological conditions and radiographic anatomical landmarks visible on dental radiographs.
  3. Complete a variety of radiographs on mannequins and patients. 

Performance Objectives:
  1. Identify the important people and events in the history of radiography.
  2. State the principles of radiation production.
  3. Identify and demonstrate methods of radiation production for the patient and operator.
  4. Operate and maintain x-ray units safely.
  5. Identify radiographic films as to size and use.
  6. Process radiographic films manually.
  7. Practice quality assurance procedures.
  8. Identify radiographic anatomical landmarks.
  9. Perform radiograph mounting.
  10. Interpret normal and abnormal pathological condition visible on dental radiographs.
  11. Describe and perform radiographic film exposure techniques.
  12. Describe and perform digital radiography exposure techniques.
  13. Evaluate radiographic quality.
  14. Complete a variety of radiographs on mannequin and patients.
  15. Identify and perform infection control precautions as specified by the Occupational Safety and Health  Administration (OSHA) and program policy.

  1. Introduction to Radiography
    1. History of radiography
    2. Production and characteristics of x-radiation
    3. Dental x-ray equipment
      1. Components
      2. Parts
    4. Inverse Square Law
  2. Radiation Health and Safety
    1. Radiation safety legislation
    2. Radiation measurement terminology
    3. Measuring and monitoring devices
    4. Protection measures for the patient
    5. Radiation protection for operators
    6. Maximum permissible doses
  3. Dental Film
    1. Film emulsion and speeds
    2. Packaging, storage, and protection of film
    3. Types of intraoral and extraoral films
    4. Handling cassettes
  4. Film Processing
    1. Darkroom
      1. Equipment
      2. Illumination
      3. Maintenance
    2. Processing solutions and procedures
    3. Inadequacies caused by faulty processing techniques
    4. Film duplication
    5. Xeroradiography
  5. Digital Radiography
  6. Identification of Anatomical Landmarks for Mounting and Interpretation
    1. Radioluscent and radiopaque images
    2. Alveolor bone and supporting structures
    3. Landmarks identified
    4. Mounting, labeling, filing, and storage of radiographs
    5. Film viewing and preliminary radiographic interpretation
    6. Abnormal and normal pathological conditions
  7. Exposure Techniques
    1. Criteria for intraoral radiographs
    2. Horizontal and vertical angulation
    3. Principles of bisecting and paralleling techniques
    4. The periapical examination
    5. Fundamentals of interproximal radiography
    6. Radiography for children
    7. Patient management
    8. Infection control
    9. Evaluation of radiographic quality
    10. Digital radiography
  8. Principles of Supplementary Film
    1. Occlusal surveys
    2. Types of use of extraoral film
    3. Lateral jaw survey
    4. Tempromandibular articulation survey
    5. Cephalometric radiography
    6. Panoramic radiography
    7. Other imaging systems

Effective Term:
Full Academic Year 2018/19