Strip Crown

Question 1

strip crown measurements

Answer 1

incisal edge reduction: 1.0 - 1.5 mm

facial surface reduction: 1 mm/ 850 diamond bur

all lingual surface reduction: .5mm

Question 2

strip crown indications

Answer 2

1) decayed anterior teeth
2) malformed anterior teeth
3) discolored anterior teeth
4) developmental defects (AI)
5) traumatized teeth

Question 3

strip crown criteria

Answer 3

1) anterior teeth
2) maxillary teeth more frequently
3) no overt pulpal involvement
4) functional
5) more than half of the root remaining
6) enamel and tooth structure sufficient
7) behavior

Question 4

Technique - Pinkham

Answer 4

1) pick shade first
2) anesthetize then isolate
3) minimized contamination
4) note mesio-distal width of too or space available
5) remove decay
6) protect pulp
7) preparation of tooth

Question 5

Remove the collar

Answer 5

make sure crown extends 0.5 - 1mm below finish line

Question 6

Prepare tooth for composite - etch, bond

Answer 6

make sure no contamination

fill crown about 2/3 with composite resin

1. seat on tooth confirming fit at gingival margin
2. orientate w/ adjacent teeth
3. remove excess resin
4. cure resin (F, I, L)

Question 7

Problems that can be encountered

Answer 7

1. tearing of crown with trimming
2. splitting of crown when seating
3. unable to remove celluloid form
4. stains show through composite
5. discoloration of gingival margins

REMOVE ALL COMPOSITE BEFORE CURING