TEACH Lesson Plan
IANNUCCI AND HOWERTON: Dental Radiography: Principles and Techniques, 5th Edition
6 Dental X-Ray Equipment
CHAPTER REVIEW ANSWER KEY
Multiple Choice
1. c
Rationale: Before 1974, no federal standards existed for the manufacture of dental x-ray machines.
5. a
Rationales:
b. The extension arm suspends the x-ray tubehead, houses electrical wires, and allows for
movement and proper positioning.
c, d. The PID is the position-indicating device.
True or False