Influence of coping design on the cervical color of ceramic crowns.

Statement Of Problem: The replication of natural teeth, especially with single-tooth restorations, represents a challenge. Similar to metal ceramic crowns, different designs of zirconia substructures have been suggested to improve the esthetic results of zirconia ceramic crowns.

Purpose Of Study: The purpose of the study was to analyze the color of the cervical portion of single zirconia ceramic crowns fabricated with different zirconia coping designs.

The effect of translucency of Y-TZP based all-ceramic crowns fabricated with difference substructure designs.

Purpose: To analyse the effect of translucency of Y-TZP based all-ceramic crowns fabricated with different substructure thicknesses and extensions. The effect of restoration shading is also investigated.

Materials And Methods: A maxillary right central incisal typodont tooth was prepared and a die was fabricated with Type IV stone after making impression.