Custom Impression Tray

Question 1

Mark the border of the tray on your diagnostic cast approximately ____ mm apical to the crest of the free gingiva

Answer 1

5

Question 2

Apply thin coat of Vaseline to areas not being covered by tray, then adapt two sheets of ____ wax over the teeth and cast to the marked border

Answer 2

Baseplate

Question 3

A total of ____ stops are needed in the tray to maintain even space for the impression material. Place these stops on the ____ cusps of the teeth.

Answer 3

3

Noncentric (lingual cusps of mand)

Question 4

Take 3 small pieces of ____ and apply it to stops first, then carefullly adapt the material to the entire cast and shape excess into handle.

Answer 4

Triad

Question 5

Cure the triad material for ____ minutes, then remove it from cast.

Answer 5

2

Question 6

The tray should cover the last molar, but not extend more than ____ mm beyond the teeth onto the land area posteriorly

Answer 6

2

Question 7

The tray must be at least ___ mm thick for strength and rigidity

Answer 7

2 (no more than 3)