Chapter 42- Extrinsic Stain Removal

Question 1

Involves the abrasive particles attached to a medium, such as a rubber cup impregnated with abrasive particles and does not require a polishing paste

Answer 1

two-body abrasion

Question 2

type most commonly used by dental hygienists, in which loose abrasive particles form a slurry between the tooth surface and the polishing application device

Answer 2

three-body abrasion

Question 3

Within the science of ____ polishing is considered to be two body abrasion or three body abrasion

Answer 3

tribology

Question 4

Areas of thin enamel are contraindicated for polishing and include:

Answer 4

enamel hypoplasia, hypo mineralization, amelogenesis imperfecta

Question 5

When polishing in preparation of sealant, avoid prophylaxis pastes containing __, or ___

Answer 5

glycerin oils, flavoring

Question 6

Contraindications for polishing

Answer 6

no visible stain, patients with respiratory problems, tooth sensitivity, restorations

Question 7

Use a soft rubber cup at ___ degrees to tooth surface with intermittent light applications

Answer 7

90 degrees

Question 8

Agents that are round, flat, nonabrasive particles and do not scratch the surface material but produce a higher luster

Answer 8

Cleaning agents

Question 9

Agents that act by producing scratches in the surface of the tooth or restoration to make the surface appear shiny and smooth

Answer 9

Polishing agents

Question 10

The primary ingredient in commercially prepared prophylaxis pastes

Answer 10

pumice

Question 11

Typical slow speed hand pieces go up to ____rpm

Answer 11

5000

Question 12

Original powder used in air polishing

Answer 12

sodium bicarbonate

Question 13

Contraindications for air powder polisher

Answer 13

Sodium restricted diet, respiratory disease, end stage renal disease, communicable infection, immunocompromised patients, patients with open wounds