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LESSON 1
HISTORY, HAZARDS, AND PROTECTION
After completing this lesson you should be able to:
- Identify how x-rays were discovered.
- Define selected terms related to radiology, radiation
hazards, and radiation protection.
- Describe the parts of a dental x-ray unit and the three-step
process required to produce x-rays.
- List the protective measures used against the hazards of
excessive exposure to radiation.
Lesson 2
Radiation Biology
After completing this lesson, you should be able to:
- Define selected terms relating to radiation biology.
- Identify the components of the atom.
- Describe the effect of x-ray photons upon atoms and
molecules.
- List the harmful effects of overexposure to radiation.
 2-1 Radiation Biology
LESSON 3
PRODUCTION OF DENTAL RADIOGRAPHS
After completing this lesson, you should be able to:
- Define selected terms related to radiographic film.
- List in sequence the steps for exposing, processing, and
viewing dental radiographs.
- Describe the facilities, materials, and methods used in
processing quality x-rays.
- List the reasons for nondiagnostic quality (faulty)
radiographs.
- Identify procedures for mounting dental radiographs.
- Identify radiolucent landmarks on maxillary radiographs.
- Identify radiolucent landmarks on mandibular radiographs.
- Identify radiopaque landmarks on maxillary radiographs.
- Identify radiopaque landmarks on mandibular radiographs
- 3-1 INTRODUCTION
- 3-2 RADIOGRAPHIC PROCESSING FACILITIES AND MATERIALS
- 3-3 FAULTY RADIOGRAPHS
- 3-4 MOUNTING AND FILING/DISPOSING OF RADIOGRAPHS
- 3-5 ANATOMIC RADIOGRAPHIC LANDMARKS
LESSON 4
Radiographic Exposure Techniques
After completing this lesson, you should be able to:
- List the types of intraoral radiographic film.
- Identify standard patient head positioning techniques.
- Identify steps of procedure for placement of film packets in
a patients mouth.
- Identify the bisecting angle (short-cone) periapical
exposure techniques.
- Identify the paralleling (long-cone) periapical exposure
techniques.
- Identify the interproximal (bite-wing) exposure techniques.
- Identify the occlusal exposure techniques.
- Identify the panoramic exposure technique.
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About this Course
This course is designed to acquaint you with
fundamental concepts of dental radiography. It seeks to familiarize you with the
techniques of positioning the patient, the tubehead, and film as well as exposing and
processing dental radiographs. A knowledge of radiography is essential to
understanding the dangers inherent in the use of X-rays. Radiographs are used in
helping the dentist to make diagnoses. There are examples in this subcourse of
commonly produced radiographs. Utmost care must be taken to follow the rules for
exposing and processing X-ray films to ensure that diagnostic quality radiographs are produced.
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