ADEX Periodontal Instrumentation and Care 2

Question 1

Which Gracey curette is specifically designed for scaling the distobuccal and distolingual surfaces of posterior teeth?

Accepted Answer

Gracey 13/14

Answer

The Gracey 13/14 is area-specific for the distal surfaces of posterior teeth.

Question 2

A dental hygienist notices tissue tags remaining after scaling. The MOST appropriate next step is to:

Accepted Answer

Use a curette to remove the detached tissue tags

Answer

Residual tissue tags should be removed with a curette as part of thorough debridement.

Question 3

The correct angulation of a curette blade to the tooth surface during the working stroke for scaling is:

Accepted Answer

45–90 degrees

Answer

A 45–90 degree angulation between the blade face and tooth surface is required for effective scaling.

Question 4

Which of the following best describes the cutting edge of a universal curette compared to a Gracey curette?

Accepted Answer

Universal curettes have two cutting edges; Gracey curettes have one functional cutting edge

Answer

Universal curettes have two usable cutting edges, while Gracey curettes have one lower, offset cutting edge.

Question 5

When instrumenting a furcation area with Class II furcation involvement, the BEST instrument choice is a:

Accepted Answer

Nabers probe and furcation curette

Answer

The Nabers probe identifies furcation depth, and furcation-specific curettes adapt within the concave furcation anatomy.

ADEX - Dental Hygiene Exam Practice Test