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FREE DENTISTRY AND STUDY GAMES ABOUT CH 41 EXAM
QUESTIONS
Actual Qs and Ans Expert-Verified Explanation
This Exam contains:
-Guarantee passing score -74 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation
Question 1: what types of film holders can you use for bisecting
Answer:
the BAI, the Stabe bite block, the EeZee grip formerly known as the snap a ray
Question 2: when using the bisecting technique what should you never do
Answer:
have the patient hold the film in their mouth with their finger Question 3: referring to radiographs with the proper images and necessary density,contrast, definition,and detail for diagnostic purposes
Answer:
diagnostic quality
Question 4: what color is the anterior XCP ring/rod system
Answer:
blue
Question 5: why does the book say you should start with anterior teeth
Answer:
the film size # 1 is small and is easier for patients to tolerate,patients adapt more easily to the anterior film holder,less likely to gag
Question 6: where should you uplace the film when using the bisecting technique
Answer:
directly against the teeth to be radiographed Question 7: when exposing periapical films with teh paralleling technique where does the book say you should always start
Answer:
with the anterior teeth Question 8: area of the mesial or distal surfaces of a tooth that touches adjacent tooth in the same arch
Answer:
contact area
Question 9: between two adjacent surfaces
Answer:
interproximal
Question 10: the paralleling technique is also known as what
Answer:
extension cone paralleling ( XCP) right angle or long cone technique Question 11: when using the paralleling technique how must the film holder be placed
Answer:
away from the teeth and toward the middle of the mouth Question 12: impairment of mental or physical functioning that usually occurs before adulthood and lasts indefinitely
Answer:
developmental disability
Question 13: used to examine large areas of teh upper or lower jaw
Answer:
occlusal technique Question 14: in some extreme cases where the patient has an uncontrollable gag reflex what can you do to obtain radiographs
Answer:
use extraoral radiographs such as a panoramic or lateral jaw films Question 15: in the labial methond the films are placed in the mount with the raised dots facing which way
Answer:
up ( toward you ) Question 16: in which situations would the operator need to use the bisecting technique over the paralleling technique
Answer:
if the pt has a small mouth, shallow palate, tori
Question 17: incorrect vertical angulation results in what
Answer:
image that is not the same length as the tooth that is being xrayed. the image appears longer or shorter
- elongated or foreshortened )
Question 18: what does incorrect horizontal angulation result in
Answer:
overlapped contact areas
Question 19: type of radiograph used in the interprosimal examination
Answer:
bitewing Question 20: when taking a FMX in the anterior region and you are using the paralleling technique which size of film would you use and how many would you take
Answer:
- -4 on each arch size # 1
Question 21: the bisecting technique is based on what principle
Answer:
the geometric principle of equally dividing a triangle Question 22: the ability to recognize errors and to know the steps to take to prevent their recurrence is what
Answer:
most important
Question 23: what are the two basic techniques for obtaining periapical x-rays
Answer:
paralleling and bisecting techniques Question 24: imaginary line dividing the tooth longitudinally(vertically) into two equal halves
Answer:
loong axis of the tooth
Question 25: cuting across or through
Answer:
intersecting
Question 26: failure to center the central ray on the film will result in what
Answer:
partail image or cone cut
Question 27: what size of film is recommended for use in pediatric patients
Answer:
Question 28: when exposing a mandibular occlusal film how is the PID directed
Answer:
at 90 degree angle to the center of the film packet, should be centered about 1 inch below the chin
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