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tooth prep - Coggle Diagram
tooth prep
PFM
ADV
retention
esthetic
Strngth
DIS ADV
difficult shad selection
destructive
Prep
Wingless
lingual 1.5mm
facial 1.5mm
campher 1mm
2mm insisal/1.5-2mm occ
Winged
lingual 1mm
shoulder 1mm/ campher 0.5mm
facial 1.5mm
2mm insisal/1-1.5mm occ
CON
young PT
Uncontrolled caries
Full ceramic
DIS ADV
less conservative than metal
weak
ADV
bonding to risen
more conservative on facial
esthetic
CON
high occ forice
long span FPD
Parafunctional habit
Prep
ZERCONIA
axial 1.5mm
champher 1mm
Occ/insisal 1.5mm
LITHIUM DISILICATE
champher 1mm
axial 1.5mm
Occ/insisal 1.5mm
Full metal
Prep
Occ guiding grooves
0.8mm-1.3mm
Finishing
Occ reduction
1mm-1.5mm
Axial reduction
0.5mm (finish line)-1mm (axial wall)
Axial alignment grooves
ADV
resestance (taper)
strength
retention (area)
DIS ADV
conduction of electricity
metal display
CON
less resestance and retention need
high esthitic