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Pedia class III pre
1. Class III Cavity - Incisors
What type of spacing would make
a patient more susceptible ?
2. Class III Cavity - Cuspids
Dovetail is placed on lingual of maxillary cuspids and the facial of
mandibular cuspids.
roximal box is placed perpendicuar to a line tangent to
he surface on which the dovetail is placed.
3. Restoration of Proximal-Incisal
Caries in Primary Anterior Teeth
u Esthetic Resin Restoration
u Stainless Steel Crown
u Open-Face Steel Crowns
u Direct Resin Crowns
Myan skull - 900 AD
5. Stainless Steel Crowns
u Esthetics - poor
u Durability - very good
u Time for placement - fastest
u Selection criteria - severely decayed, esthetics of
minimal importance, gingival hemorrhage not
controlled, inadequate patient cooperation
6. Open-Face Steel Crowns
u Esthetics - okay
u Durability - good, although
facing may be dislodged Time
for placement - takes longest to
place due to two-step procedure
Selection criteria - severely
decayed teeth, durabilty needed,
esthetics are a concern
7. Pre-fabricated Anterior Stainless Steel Crowns
u Brand names
u NuSmile
u Whiter Bite II
u Cheng Crowns
u Knider Crowns
u Advantage
u decrease chair time
u Disadvantage
u esthetics ?
u fractures
8. Challenge. . .
“The goal of restorative dentists as
we approach the 21st century should
be to delay and prevent placement of
initial restorations.”
Kenneth J. Anusavice
JADA, Vol. 126, June 1995
11. • If the cavity preparation
is deeper than 1.0mm
into dentin pulp
• Pulp protection should
be placed (only on floor
of cavity prep)
• Pulp protection may be
calcium hydroxide and/or
and/or Resin Resin-GI
cement
17. Using Abrasive Discs
• Finish Class III C-R
with “football
”shaped finishing
points on lingual
• Use ET 6 bur and
Soflex discs on
facial surface
• Interproximal use a
gold knife and
abrasive strips
