No-preparation and conventional veneers in esthetic dentistry: Clinical considerations

The choice between no-preparation and conventional porcelain veneers remains a clinical challenge due to the differences in clinical longevity, esthetic outcomes and preservation of tooth structure. Therefore, it is of interest to compare no-preparation porcelain veneers with conventional porcelain veneers to support clinical decision-making. Evidence from peer-reviewed studies demonstrates favorable short- to mid-term survival of no-preparation veneers. Success rates reach up to 97.4% when bonded to enamel in well-selected cases. The advantages of no-preparation veneers include enamel preservation, reduced postoperative sensitivity and have a low biological cost. However, they are not recommended for cases with intrinsic discoloration, misalignment, or significant morphological discrepancies. Conventional veneers remain dependable for complex esthetic corrections; however, they require greater tooth reduction and carry a higher biological risk.