CH 2 Flashcards
How deep should depth orientation grooves be on a CVC prep for the fucntional cusps
1.3 mm
How deep should depth orientation grooves be on a CVC prep for the non functional cusp
.8
what should be done for the functional cusps that is not done on the non-functional cusp
Functional cusp bevel
How should plains on a tooth be removed
Correspond to the anatomical features of the un preped tooth
How should the plains ontdedhe oclusal surface be removed to make for convience of references
One half at a time
What is the angle of the functional cusp bevel
About 45 degrees to the long axis of the tooth
where should the chamfer be placed clinically
As far supragingivally as possible for periodontal health
what are the most difficult proximal areas to reduce
those with broad contacts or where there is root proximity
why place a nonfunctional cusp bevel
If the lingual surface of the tooth has a pronounced contour to allow for significant bulk
what happens to the prep if everything is over-rouned
Resistance is lost
what is the minimum reduction at the linguo-occlusal line angle
.6mm
Which way do maxillary molars tend to lincline
to the buccal
what is found on the buccal surface of maxillary posterior teeth
2 planes
what are the two planes for posterior maxillary teeth
From the gingival crest to the junction of the middle and occlusal 3rd of the tooth
from the junctional of the midle and occlusal 3rd to the occlusal age
what buccal plane describes the POW for a post maxilary tooth
the buccal first plane
