Composite resin is a less expensive than porcelain & is frequently used for veneers. Composite veneers may also be made in a lab with the same process as porcelain veneers. This kind of veneer can be made & placed in a single visit. After preparing & reshaping your teeth, your dentist will choose a shade & sculpt the material directly on your teeth. The material hardens under a special light that bonds it to the enamel. The finishing touch is smoothing & polishing the composite resin to a natural appearance. Composite veneers require less preparation, cost less & are easier to repair than porcelain & unlike porcelain can be installed in a single appointment. This makes composite veneers an option for younger patients. However, composites may have a shorter lifespan &wear down more easily.