Free 5-question sample test with instant feedback. See how ready you are.
Question 1
In the paralleling technique, how should the film/sensor be positioned relative to the long axis of the tooth?
Answer: The film/sensor should be placed parallel to the long axis of the tooth, with the central ray directed perpendicular to both the tooth and the film.
Question 2
What is the primary advantage of the paralleling technique over the bisecting angle technique?
Answer: The paralleling technique produces less image distortion and more accurately represents the true shape and length of teeth because the film is parallel to the tooth.
Question 3
In the bisecting angle technique, where is the central ray directed?
Answer: The central ray is directed perpendicular to an imaginary line that bisects the angle formed between the long axis of the tooth and the plane of the film.
Question 4
Which film-holding instrument is most commonly recommended for the paralleling technique?
Answer: A Rinn XCP (Extension Cone Paralleling) instrument or equivalent film-holding device is recommended because it holds the film parallel to the tooth and guides beam angulation.
Question 5
When taking a bitewing radiograph, where is the film/sensor positioned vertically?
Answer: The film is centered horizontally to cover both the maxillary and mandibular posterior teeth, with the occlusal plane bisecting the film and the tab centered in the patient's bite.