Exam Questions and CORRECT Answers
Operative dentistry is the primary responsibility of the: - CORRECT ANSWER - General
dentistry
Esthetic dentistry is primarily devoted to improving the appearance of teeth, by either restoring
imperfections with direct and indirect restorative materials, or with the use of: - CORRECT
ANSWER - Whitening techniques
____ form of cavity preparation is when the dentist determines the primary shape and placement
of cavity walls. - CORRECT ANSWER - Retention
The dental assistant's responsibilities in a restorative procedure include: - CORRECT
ANSWER - Preparing, mixing, and transferring dental materials
Class II restorations are found on: - CORRECT ANSWER - Posterior teeth
The usual material of choice for class III and class IV restorations is: - CORRECT
ANSWER - Composite resin
Which of the following statements is true of retention pins? - CORRECT ANSWER - The
retention pin has deep threads that grip the dentin when screwed into tooth structure
An example of a restorative dental procedure is a(n): - CORRECT ANSWER - Amalgam
An example of esthetic dentistry includes: - CORRECT ANSWER - Teeth bleaching
Decay that involves the lingual pit of a maxillary incisor is a class: - CORRECT
ANSWER -I
, Usually _____ material is selected for the permanent restoration of a class I lesion. - CORRECT
ANSWER - Composite
A comprehensive class II restoration may involve as many as _______ surfaces of a tooth. -
CORRECT ANSWER - Two
When one or both of the proximal surfaces are removed during a restoration, there is no support
to hold the material in place, so a _______ must be used to replace these walls during the
procedure. - CORRECT ANSWER - Matrix system
Class III restorations involve the proximal surfaces of ____ and _____. - CORRECT
ANSWER - Incisors; canines
During a class III restoration, the dentist will enter the tooth from the _____ surface to minimize
the size of the restoration. - CORRECT ANSWER - Lingual
During a class III or IV restoration, the dentist may use a _____ to help reproduce the correct
contours and contact. - CORRECT ANSWER - Mylar matrix system
Lesions of class V decay usually occur on the _____ third of the smooth surface of a tooth. -
CORRECT ANSWER - Gingival
One of the most important considerations when a dentist is restoring a class V is the: -
CORRECT ANSWER - Nearness of the lesion to the gingiva
Which statment is not true concerning veneers? - CORRECT ANSWER - Veneers have an
unlimited lifespan
Which statement is not true concerning tooth whitening? - CORRECT ANSWER - Tooth
whitening is permanent