midterm review Flashcards
zirconia framework are fabricated by
CAD/CAM
pressed on zirconia ceramics means
- general
zirconia framework then pressed on ceramics to that
when fabricating an FPD from 3-X-X-6, this FPD should…
CANINE GUIDANCE
- b/c reasons why they are best at accpeting forces
only time not doing this is if they are implants
why canine guidance
accept horizontal forces that ocur during eccentric movemetns in addition to disarticulating the posterior teeth
longest and largest that are surrounded by dense compact bone – tolerates forces better
fewer muscles are active when canines contact – lower levels of muscular activity - will decrease the forces to the dental and joint structures
pt has class II div II who is missing 4 and 5 the FPD that is designed from 3-x-x-6 can …
TALLER CUSPS THAT will not cause pre mature contacts due to steep anterior guidance
deep bite
steep anterior guidance
group functio harder to restore
yes
limited missing teeth and sending to lab for fabrication what does not need to be included in rx
CR wax recrd – because they have MIP!!
DOESNT WANT THE WHOLE ARCH SENT
Once something is between the teeth in occlusion
no longer MIP - no longer the best fit of occlusion
when pt. protrudes mandible, the potential for disclusion of the posteiror teeth will INCREASE with:
steeper anterior guidance
steeper condylar guidance
- separate even more
steep curve of spee implication?
higher in back – like compensating curve