All ceramic partial coverage Flashcards
canines are different in fixed prosth, lingual concavity is not like the others
gotta prep it in 2 planes and keep convex
*do a full arch impression to find the contralateral canine and protection of the second molars.
all ceramic partial coverage can be done on
both vital and non vital teeth
do partials when
significant mesial or distal damage with buccal or lingual tooth structure remaining
musta have enamel to bond with on both
buccal and lingual
ideal when
axial reduction for full coverage crown would otherwise remove most of the remaining buccal or lingual tooth structure.
Must have enamel to bond with on both buccal & lingual
(The more the better…)
aitain isolated dry field, rubber dam
avoid in unhealthy gingiva, will give you a bad seal otherwise.
isolation requirement
Must isolate in such a way that proximal surfaces of adjacent teeth are exposed
Isolation must allow unobstructed seating of restoration
Isolation must not interfere with removal of excess bonding resin
Bonding appt procedure
Anesthetize if tooth is vital
Isolate with cotton rolls &/or absorbent cards
Remove temporary
Clean excess temporary material &/or bonding agent from tooth with hand scaler
Gently scrub prepared tooth with flour of pumice in polishing cup
Thoroughly rinse prepared tooth & adjacent teeth
Replace cotton roll &/or absorbent card
Dry prepared tooth and adjacent teeth
Mark occlusal contacts on adjacent teeth in MI
Place restoration on prepared tooth
Check proximal contacts (Assistant holds while you check with floss.)
Check margins
Check occlusion with contrasting color of articulating ribbon or paper – Light touch only, NO heavy closing or grinding at this point! Evaluate only MI, as un-bonded restoration will tip and move on prepared tooth in excursive movements.
Adjust as necessary
Decide shade of esthetic resin cement (either Variolink or Calibra) you would like to use and set aside (DO NOT dispense yet!) – Use in dual cure mode (mix base + catalyst)