veneers Flashcards
veneer defined
It is a thin bonded ceramic
restorations that restore the facial surface
and part of the proximal surfaces of the
teeth requiring aesthetic restoration
key for long term veneer success
Enamel Bond is the key for the long term
success of the restoration.
ADVANTAGES OF PORCELAIN VENEERS:
▸ Conservative?
▸ Biocompatible?
▸ Esthetics and?
▸ Color?
▸ Resistance to?
ADVANTAGES OF PORCELAIN VENEERS:
▸ Conservative approach
▸ Biocompatible
▸ Esthetics and patient satisfaction
▸ Color stable
▸ Resistance to abrasion
DISADVANTAGES of porcelin veneers
▸ cement?
▸ Time?
▸ Requires?
▸ Shade?
▸ repair?
▸ strength?
▸ Cost?
▸ Technique sensitive “cementation”
▸ Time consuming chairside (temporizing and cementation)
▸ Requires skillful lab technician
▸ Shade is difficult to be modified after fabrication
▸ Hard, if not impossible, to repair
▸ Fragile to handle
▸ Cost v/s composite veneers
HOW LONG DO VENEERS LAST?
▸ 10-years estimated cumulative rate of Porcelaine Laminate Veneers (PLVs) was
95.5%
most common veneer complications
Fracture seems to be most common complication of PLVs, followed by debonding, both more commonly happening within the first years after PLV cementation.
ESTHETIC CONSIDERATIONS AND CASE SELECTION for PLV
▸ Smile?
▸ Teeth?
▸ Occlusion?
▸ Color?
▸ Smile analysis
▸ Teeth shape and proportions
▸ Occlusion
▸ Color and shade selection
SHADE SELECTION SHOULD INCLUDE:
▸lighting condition?
▸ destructive colors?
▸ Take tooth shade when/how?
▸ Remember to take the shade of?
▸ From straight angle to the tooth, quickly select?
▸ Check lighting condition, use natural light.
▸ Remove destructive color such as lip stick from shade taking field.
▸ Take tooth shade before procedure, keep tooth wet, do not dehydrate.
▸ Remember to take the stump shade.
▸ From straight angle to the tooth, quickly select several possible shade tabs then select one.
INDICATIONS FOR PORCELAINE VENEERS
▸ Changing?
▸ Masking?
▸ Closing?
▸ Replacing?
▸ Improvement of?
▸ Changing Shape and/ or size of teeth
▸ Masking multiple discolored teeth (tetracycline)
▸ Closing single or multiple diastema
▸ Replacing surface defects due to trauma
▸ Improvement of occlusal guidance
VENEERS CAN CHANGE:
VENEERS CAN CHANGE:
▸ Color
▸ Shape
▸ Size
▸ Function
CONTRAINDICATIONS for veneers?
▸ Lack of?
▸ Untreated or uncontrolled?
▸ Loss of?
▸ heritable dx?
▸ Presence of?
▸ occlusion?
▸ Teeth exhibiting?
▸ Actively?
▸ Lack of posterior support
▸ Untreated or uncontrolled para-functional habits
▸ Loss of major tooth structure
▸ Amelogenesis imperfecta
▸ Presence of extensive bonding filling materials
▸ Unfavorable occlusion (class III occlusion or edge to edge)
▸ Teeth exhibiting severe crowding or diastema
▸ Actively erupting teeth
NEVER START A RESTORATIVE PROCEDURE UNLESS YOU CAN
NEVER START A RESTORATIVE PROCEDURE
UNLESS YOU CAN VISUALIZE THE FINAL RESULT
WHAT IS THE NEED FOR A MOCK-UP?
▸ Visualize the ?
▸ Confirm the accuracy of?
▸ Check the?
▸ Confirm the patient’s?
▸ Use the mock-up for?
▸ Visualize the esthetic outcome prior starting any treatment
▸ Confirm the accuracy of the diagnostic wax-up
▸ Check the functional and phonetic outcome
▸ Confirm the patient’s approval of the proposed treatment plan
▸ Use the mock-up for conservative tooth preparation
steps of mock up
- shade selection
- casts/wax up
- silicon key
- application mock material
- set-up of mock
- evaluation of outcome
DIFFERENT DESIGNS OF TOOTH PREPARATION
▸ No preparation
▸ Facial preparation only (window preparations)
▸ Facial and incised butt joint preparation
PREPARATION OUTLINE
▸ Depth cut
▸ Island reduction
▸ Define chamfer
▸ Butt joint preparation for the incisal reduction
depth cut burs
will create depth cuts that then allow for island reduction
cementation steps for veneer surface
cementation steps for tooth surface
