Porcelain veneers represent a reliable, predictable procedure for conservative treatment of unaesthetic anterior teeth with an estimated survival probability of 93.5% over 10 years. Fracture, chipping, color change and parafunctional habits were the most frequent complication. This case report highlights an esthetic restoration of two discolored maxillary incisors by tow glass ceramic crowns after failure related to debonding of two porcelain laminate veneers due to pen biting.