Metal-Ceramic Crown Preps Flashcards Preview

SP14 Fixed Restorative > Metal-Ceramic Crown Preps > Flashcards

Flashcards in Metal-Ceramic Crown Preps Deck (19):
1

Only the ______ and ______-____ surface will be covered with porcelain

facial and occluso-buccal

2

The shoulder margin is prepared to extend from a point approximately _____ lingual to MB line angle, around the buccal surface and to a point approximately _____ lingual to the DB line angle

1mm

3

The shoulder recess should maintain ____ width around its entire circumference

uniform

4

The extent of the shoulder preparations are determined by the _____ _____ of the restoration

esthetic demands

5

Which is more visible when the patient laughs or speaks; mandibular posterior or maxillary posterior

maxillary posterior

6

There are 3 disadvantages to covering the occlusal surface with porcelain; it has the potential to _____ opposing natural dentition, the potential for ____ due to fracture under heavy occlusal loads, and more _____ of tooth structure required

abrade
failure
removal

7

The contour of the facial surface of posterior molars and premolars require a ____ ____ reduction

two plane

8

The buccal first plane cut establishes the ____ and space for the ____ ____; it usually occupies the ______ half

POW
veneering medium
cervical

9

The buccal second plane is generally 1/3-1/2 the ____-____ height; the angle is determined by the ____ _____ _____

occluso-cervical
depth orientation grooves

10

True or False
Use the same measurements from a CVC for a MCC

True

11

A maxillary premolar requires _____mm reduction over both the functional and non-functional cusps

1.5mm

12

When doing a MCC use the ____ bur, for the axial wall/shoulder

702.8M; has a flat end

13

Same steps as a CVC for a MCC, but reduce the _____ _______ second and the ______ before finishing

buccal reduction (1st and 2nd planes)
shoulder

14

The axial depth orientation grooves should be placed ______mm coronal to the pencil

0.75

15

True or False
Make the DOG to the full extent of the 702 bur depth

True

16

Place the second buccal plane groves ____ the first plane groves

between

17

The 702 is only used on the ____ surface

buccal

18

The sloped should finish line should be ____ degrees and angled with hatchets

120

19

The ideal shoulder width is ____mm

1.2mm