Digitally driven tooth reduction guide combined with chairside tooth preparation monitoring tool for veneer preparation: A dental technique.

This article describes a completely digital workflow for ceramic veneer preparation with computer-aided design and computer-aided manufacturing technology. A simplified 3-dimensionally printed tooth reduction guide for accurate intraoral trial restorations is manufactured to indicate the range of the unprepared tooth surfaces erupted beyond the digital esthetic waxing. By using the Medit Design software program, chairside tooth preparation is monitored by accurate measurement of the amount of tooth reduction relative to the required restorative contours. Compared with conventional techniques, this technique improves the control and efficiency of tooth preparation, aiding in enamel preservation and achieving a predictable prosthetic effect.