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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.
 1-1 INTRODUCTION - 1-2 PRODUCTION OF X-RAYS
- 1-3 RADIATION HAZARDS AND
PROTECTION
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 rad iog raphs.
- Identify radiolucent landmarks on maxillary rad iog raphs.
- Identify radiolucent landmarks on mandibular rad iog raphs.
- Identify radiopaque landmarks on maxillary rad iog raphs.
- Identify radiopaque landmarks on mandibular rad iog raphs.
- 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.
- 4-1 INTRODUCTION
- 4-2 BISECTING
(SHORT-CONE) PERIAPICAL EXPOSURE TECHNIQUES
- 4-3 PARALLELING
(LONG-CONE) PERIAPICAL EXPOSURE TECHNIQUES
- 4-4 BITE-WING
(INTERPROXIMAL) EXPOSURE TECHNIQUES
- 4-5 OCCLUSAL
EXPOSURE TECHNIQUES
- 4-6 THE PANORAMIC
RADIOGRAPH
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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.
Acknowledgements
This course is adapted from a textbook, Dental
Radiography, published by The Academy of Health Sciences, Fort Sam Houston, Texas
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