1b - Veneers

Question 1

What is a veneer?

Answer 1

A (usually) thin covering of restorative material placed over the labial surface of an anterior tooth

Question 2

Why might a veneer be used?

Answer 2

• Improve shape or colour
  –Close diastemas (gaps)
  –Mask enamel hypoplasia
  –Minimal prep / no prep (in enamel)
  –Veneer derives strength from bond to tooth

Question 3

How to treatment plan for veneers?

Answer 3

History
●Examination
●Special Tests
–Sensibility tests / LCPA’s / photographs / study casts + occlusal Record + facebow transfer/ diagnostic wax-up
●Diagnosis
●Treatment Plan

Question 4

Treatment options for discoloured anterior teeth

Answer 4

Simple scale and polish
●Micro-abrasion
●Bleaching
●Direct Composite Veneer
●Indirect Veneers (Composite or Porcelain)
●Crowns
●Combination of the above

Question 5

Types of veneer

Answer 5

DIRECT
●Composite

INDIRECT
●Composite
●Porcelain

Question 6

Direct veneers advantages

Answer 6

No preparation necessary
●No / minimal biological costs
●Preserves remaining tooth tissue
●Repairable and maintainable
●No need for impressions + reduced laboratory input
●Can incorporate existing composites
●Instant results

Question 7

Direct veneers disadvantages

Answer 7

Requires artistic skills and training
–Bonding / marginal placement and adaptation / approximal access / long chairside sessions / moisture control
●Additional technique therefore bulks out teeth and changes occlusion
●Staining and chipping

Question 8

Indirect veneer types

Answer 8

● Composite

●Porcelain
–Feldspathic (0.5 – 0.6 mm)
–Lithium disilicate (0.3 mm)

●Bonded using resin based cement (Panavia, Nexus, Calibra etc)

Question 9

Indirect veneers advantages

Answer 9

Less chairside time (initially)
●Reduced staining (porcelain)
●Good marginal adaptation
●Easier to control anatomy (technician)

Question 10

Indirect veneers disadvantages

Answer 10

High biological costs
●Indirect composite more complications
●Difficult to repair and maintain
●More chairside time? (long term)
●Shade matching
●Temporisation
●Cementation technique sensitive

Question 11

Indirect composite VS porcelain

Answer 11

Question 12

How to prep tooth for veneers

Answer 12

Within enamel!
●0.3 – 0.5 mm facial reduction
●Incisal coverage (no overlap)
–Finish line at gingival margin
●Approximal reduction not through contact point
●Check Occlusion