porcelain laminate veneer

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

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

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

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.

Disadvantages of porcelain veneers 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

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

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.

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