What are contraindications of veneers?
- High caries risk
- Extensive existing restoration
- Less than 60% enamel left after prep
-Poor plaque control - Parafunctional habit
What are advantages of veneers?
- Superior esthetics
- Wear and stain resistant
- COnservative prep
- Quick
- Painless
- Good tissue response
- Long lasting
When is a window prep recommended?
- For most direct and indirect composite veneers
Describe window prep
- Intrenamel design preserves the functional lingual and incisal surfaces, protecting veneers from occlusal stress (preserving stress in enamel)
When is an incisal-lapping prep indicated?
When tooth being veneered needs lengthening or when an incisal defect warrants restoration
Incisal-lapping prep is used frequently with
pocelain veneers since it facilitates accurate seating of veneer on cementation
What is the most conservative prep?
Window
What is better- incisal coverage or no incisal coverage?
Incisal coverage
What prep is preferred fro healthy normal tooth with sufficient thickness?
Incisal overlap
What prep is preferred for worn teeth and fractured teeth?
Incisal butt
Do you leave cord in for the impression?
Yes
Do you etch the entire tooth for a provisional?
No
Every ceramic material is made of
matrix and filler
MAtrix dictates the
physical properties, handling characteristics and optical properties
What is an example of a high glass ceramic?
Feldspathic porcelain
What are advantages of feldspathic porcelain?
- Low hardware costs
- Excellent optical properties
- Best mimic natural teeth
What are disadvantgaes of feldspathic porcelain?
- Technique sensitive/time consuming
- Low fracture resistance
- Shrinkage/fit
What are advantages of pressable ceramics?
- Safe
- Esthetic
- Less working time
- Firm fit
- Long term success
- Many indications
What are disadvantages of low glass content ceramics?
High costs
What is a type I patient?
Simple esthetic veneers
What is a type-IA patient?
Want to change tooth shape
What is rec for a type IA pt?
Conventional feldspathic porcelain (high glass)
What is a type IB pt?
Want to change the tooth color
What is rec for type IB pt
Low glass ceramics
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Single Complete Denture15
-
Color25
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Immediate Dentures24
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Restoration of Endo Tx Teeth62
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Reline1
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Other denture methods8
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Veneers30
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Digital Dentures6
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Inlays and Onlays31
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Fixed Misc4
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Endo Crown10
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RPDs12
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Kennedy Classification7
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Major Connectors41
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Minor Connectors17
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Direct Retainers and Indirect Retainers59
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Preprosthetic Surgery8
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biomechanics of RPD39
