The Chairside Instructor 45 A veneer is a thin covering that is placed over the front (visible) part of the tooth. Veneers can be used to fix gaps between teeth or improve the appearance of teeth that are badly stained, misshapen or out of alignment. Veneers are made of either porcelain or composite resin material. Your dentist will help you choose the material best for you based on strength, stain resistance, color and appearance. Before veneers After veneers A porcelain veneer is placed After placement Veneers Cosmetic Options