Chapter 48 Quizs

Which of the following is the step in initial cavity preparation when the dentist decides on the design and initial depth of sound tooth structure?

• Outline form

• Resistance form

• Retention form

• Convenience form

What is the dental assistant responsible for during a restorative procedure?

• Evaluating the tooth to be restored

• Administering local anesthesia

• Determining the type of dental materials to be used

• Preparing and transferring dental materials

A temporary restoration that can be placed in any tooth or tooth surface for a short period is also known as which type of restoration?

• Intermediate

• Permanent

• Conservative

• Comprehensive

Which of the following procedures is an example of esthetic dentistry?

• Silver amalgam

• Teeth whitening

• Dentures

• Gold crown

Which statement is incorrect concerning veneers?

• Veneers have an unlimited life span.

• Veneers can discolor, wear, or chip over a period of time.

• Good oral hygiene is essential to keep the margins free of plaque and decay.

• Veneers can be cracked by biting into hard surfaces such as ice.

Which statement is true regarding retention of pins?

• In general, three pins are inserted to replace each missing cusp.

• The retention pin has deep threads that grip the dentin when screwed into tooth structure.

• Pins are always 0.023 mm in diameter and extend 2 mm into tooth structure.

• Pins are placed into the root canal of the tooth.

When one or both of the proximal surfaces are removed during a preparation, how is the filling material retained while restoring?

• Cavity wall

• Line angle

• Resistance form

• Matrix system

Where do Class V lesions occur?

• Gingival third

• Occlusal surface

• Incisal edge

• Facial surface

What is the fastest, most efficient way to whiten teeth?

• In-office treatment

• Whitening toothpaste

• Brush-on whitening methods

• Trays with bleaching gel

Which statement is incorrect regarding brush-on whitening methods?

• It can cause blotches on the teeth if not used properly.

• It is as effective as other tooth-whitening methods.

• It is inhibited by saliva

• It must be used regularly