2. Porcelain Veneers : Are wafer-thin shells of porcelain that are bonded onto the front side of teeth so to create a cosmetic improvement for a tooth. Porcelain veneers require a longer treatment time.
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4. Composite Veneers : Composite veneers cover the facial surface of teeth to change tooth color, position or shape. Composite veneers can be applied during a single office visit.
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6. Reference : Quinn F Mc Connell RJ "Porcelain Laminates: A review", Br Dental J. 1986:161(2):61-65 CalamiaJohn R. "Clinical evaluation of etched porcelain veneers" Am J Dent 1989:2:9-15