Trial insertion procedure for milled lithium disilicate restorations in the precrystallized state.

A treatment protocol with lithium disilicate restorations and a computer-aided design and computer-aided manufacturing (CAD/CAM) fabrication process is proposed for the restoration of teeth in the esthetic zone. The technique involves trial insertion of restorations at the precrystallized stage, allowing verification of the marginal fit and evaluation of the internal adaptation and overall esthetic plan to ensure an optimal clinical result for the definitive restorations. Furthermore, this procedure allows most adjustments to the lithium disilicate ceramic to be made before crystallization and minimizes potential surface and subsurface damage to the definitive restorations.