Porcelain veneers can technically not wear out during a human lifespan. However, regular wear and tear may deteriorate the bonding material resulting in gradual damage. According to dentists, porcelain veneers will last roughly 10 to 15 years. However, the lifespan of veneers are determined by the patient’s dental hygiene, eating habits, if the patient suffers an accident to the mouth, potential tooth decay occurring around the porcelain veneer, and so on.