Porcelain veneers are stain-resistant porcelain shells apllied to teeth with special bonding. Like with composite veneers, porcelain veneers will protect the teeth from natural wear for as long as 15 years before needing to be replaced. The application of porcelain requires more time and customized lab resources, which contributes to the higher cost. Porcelain veneers can be applied within 2 visits.