Metal-Ceramic Crown Preps Flashcards
Only the ______ and ______-____ surface will be covered with porcelain
facial and occluso-buccal
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
The shoulder recess should maintain ____ width around its entire circumference
uniform
The extent of the shoulder preparations are determined by the _____ _____ of the restoration
esthetic demands
Which is more visible when the patient laughs or speaks; mandibular posterior or maxillary posterior
maxillary posterior
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
The contour of the facial surface of posterior molars and premolars require a ____ ____ reduction
two plane
The buccal first plane cut establishes the ____ and space for the ____ ____; it usually occupies the ______ half
POW
veneering medium
cervical
The buccal second plane is generally 1/3-1/2 the ____-____ height; the angle is determined by the ____ _____ _____
occluso-cervical
depth orientation grooves
True or False
Use the same measurements from a CVC for a MCC
True
A maxillary premolar requires _____mm reduction over both the functional and non-functional cusps
1.5mm
When doing a MCC use the ____ bur, for the axial wall/shoulder
702.8M; has a flat end
Same steps as a CVC for a MCC, but reduce the _____ _______ second and the ______ before finishing
buccal reduction (1st and 2nd planes) shoulder
The axial depth orientation grooves should be placed ______mm coronal to the pencil
0.75
True or False
Make the DOG to the full extent of the 702 bur depth
True
