RDA Dental Instruments and Tray Setups 5

Question 1

Which instrument in a crown and bridge tray setup is used to seat and remove temporary crowns?

Accepted Answer

Crown remover (crown and collar scissors or crown puller)

Answer

A crown remover or crown puller is used to dislodge temporary and permanent restorations without damaging the tooth or crown.

Question 2

What is the function of articulating paper during a crown cementation appointment?

Accepted Answer

To check the occlusion of the newly cemented crown

Answer

Articulating paper marks high spots on the crown when the patient bites, allowing the dentist to adjust the occlusion.

Question 3

A scalpel handle (#3) loaded with a #15 blade is most commonly used during which procedure?

Accepted Answer

Soft tissue surgical procedures such as gingivectomy

Answer

A #3 scalpel handle with a #15 blade is a standard surgical setup used for incisions in soft tissue periodontal and oral surgery procedures.

Question 4

Which instrument is used to check the depth and contour of a periodontal pocket?

Accepted Answer

Periodontal probe

Answer

A periodontal probe has millimeter markings and a blunt tip used to measure pocket depths around each tooth.

Question 5

In an extraction tray setup, what is the role of the surgical elevator?

Accepted Answer

To loosen the periodontal ligament and luxate the tooth before forceps use

Answer

Elevators are inserted into the PDL space to sever periodontal fibers and loosen (luxate) the tooth prior to forceps application.

(RDA) Registered Dental Assistant Practice Test