DENTAL RADIOLOGY COMPREHENSIVE STUDY GUIDE FULL QUESTIONS WITH ACCURATE SOLUTIONS

DENTAL RADIOLOGY COMPREHENSIVE
STUDY GUIDE FULL QUESTIONS WITH
ACCURATE SOLUTIONS

●● Periapical Film
Answer: Used to show root apex of tooth and surrounding structures


●● Bitewing exposure
Answer: Used to detect interproximal decay and height of alveolar bone


●● Occlusial
Answer: Used to view cross section of the teeth and complete palatal
structure or floor of mouth


●● 5 safety precautions for operator
Answer: 1) Never hold film in patients mouth
2) Stand behind a protective barrier
3) stand 6 feet away from x-ray unit
4)Never stand in direct line of primary beam
5) Use lead lined open cone


●● Care of x-ray unit

, Answer: 1) Don't force unit arm to be extended
2) Don't leave the arm extended after use
3) allow 5 seconds between exposures to let the tube cool
4) Don't let the tube head hit the wall
5) always turn off unit when finished


●● Inverse Square Law
Answer: Using a longer target object diminishes intensity of radiation


●● Horizontal angulation (Parallel Technique)
Answer: Central ray must pass through the teeth parallel to the proximal
surfaces


●● Vertical Angulation (Parallel Technique)
Answer: The film is parallel to the long axis of the teeth


●● Elongation
Answer: Vertical angulation too low


●● Foreshortening
Answer: Vertical angulation too high