what is dental veneers? Indications Contraindications Advantages Disadvantages technique

1. porcelain laminate veneer

2. what is dental veneers?
 Dental veneers are custom made shells made
from tooth colored materials that facilitate
covering the front surface of the tooth and these
are alternately known as dental laminates.
 Dental veneers are normally classified under
cosmetic dentistry

3. Indications of veneers
 Esthetically compromised anterior teeth
 Poorly shaped or crooked teeth
 Stained teeth (intrinsic/extrinsic)
 Closure of diastemas
 Enamel hypoplasia
 Fractured teeth
 Anatomically malformed teeth
 Tooth wear

4. Contraindications
 Crowded or misaligned teeth
 Teeth with inadequate enamel present
 Patient with habitual clenching and grinding
 Non-ideal occlusion
 Periodontal disease
 Teeth weakened by existing large restorations

5. Advantages
 Esthetic stability
 Stain resistant
 Stronger and durable
 Gum tissue tolerates porcelain well
 The color of a porcelain veneer can be selected such
that it makes dark teeth appear whiter.
 Veneers offer a conservative approach to
changing a tooth's color and shape.

6. Disadvantages of porcelain vene
 The process is irreversible
 More costly than composite veneers
 Not suitable for patients with clenching or grinding
habits
 Not repairable should they chip or crack
 Tooth may become more sensitive to hot and
cold foods and beverages
 They can dislodge and fall off
 Technique sensitive

7. technique
(VENEER PREPARATION PROCEDURE)
 Shade Selection- Clean teeth with pumice and water
 Select a tentative shade with the patient participating
Tooth preparation- A uniform 0.5mm intraenamel reduction is sufficient
 Preparations are extended to the gingival crest and into
 the interproximals without breaking contact

Impression- The retraction cord should be left in place if possible during the
impression
Use a polysiloxane or polyether material for the
impression
 Clinical try-in- Contacts need to be carefully assessed
 Proximal contacts can be adjusted

8. CEMENTATION
 Steps
 Try-in paste allow you to mask any underlying color
abnormalities and select cement shade.
 Apply saline solution to the internal aspect of the veneer.
 Etch, rinse, dry but do not dessicate.
 Apply primer/adhesive to the tooth and lightly air dry.
 Apply cement to the internal aspect of the veneer, seat the
veneer, clean off excess cement, light cure.
 Floss contacts and adjust occlusion.

9. Thank you