removing an old composite

Question 1

composite restorations leak

Answer 1

1) at the gingival margin

Question 2

fuzzy radiolucency

Answer 2

1) recurrent decay

Question 3

amalgams are easily removed

Answer 3

1 )water, HVE
2) high speed

Question 4

composite may or may not still be

Answer 4

1) bonded to the tooth
2) must be carefully drilled out

Question 5

830 diamond and 245 bur

Answer 5

1) to remove composite

Question 6

how to remove composite

Answer 6

1) drill out composite as best you can with high speed
2) make sure no composite is remaining
3) remove recurrent decay rom dentin with large round bur
4) check for decalcified enamel and remove with high speed

Question 7

how to tell if it is tooth or composite

Answer 7

1) check BWX
2) scratch with explorer
- if it leaves gray streaks, it is composite
- feels sandy
- high pitch scratchy sound
- feels smooth (dentin)
- if explodes white powder at high speed, it is composite