Chapter 12: Vocabulary

Question 1

a procedure used to reduce excess restorative material to develop appropriate occlusion and contour; this is usually done with rotary cutting instruments. Finishing removes surface blemishes and produces a smooth surface. Finishing requires the hardest appropriate material except at the margin of the restoration, where tooth structure may be affected

Answer 1

Finishing

Question 2

a procedure that produces a shiny, smooth surface by eliminating fine scratches, minor surface imperfections, and surface stains using mild abrasives frequently found in the form of pastes or compounds. Polishing produces little change in the surface. It may have to be repeated periodically during the life of the restoration if tarnish or stains develop. Polishing requires materials with a Mohs’ hardness of only 1 to 2 units above the substrate being polished.

Answer 2

Polishing

Question 3

a material composed of particles of sufficient hardness and sharpness to cut or scratch a softer material drawn across its surface

Answer 3

Abrasive

Question 4

the particle size of the abrasive, typically classified as coarse, medium, fine, and superfine

Answer 4

Grit

Question 5

a procedure that is primarily meant to remove soft deposits from the surface of restorations and tooth structures. Polishing and cleansing are done to remove surface stains and soft deposits from the clinical crowns and expose root surfaces of teeth after all hard deposits are removed. Aside from abrasives, there are also chemical cleansing products that are primarily used for removable appliances. Cleansing requires materials with Mohs’ hardness no greater than equal to the substrate

Answer 5

Cleansing

Question 6

a procedure for removal of excess restorative material from margins of restorations

Answer 6

Margination

Question 7

feather-like excesses of material present on occlusal and proximal surfaces

Answer 7

Flash

Question 8

excessive material present at the cervical cavosurface margin

Answer 8

Overhang