Spectrophotometric evaluation of the optical influence of different metal alloys and porcelains in the metal-ceramic complex.

Statement Of The Problem: Color matching between natural teeth, shade guides, and metal-ceramic restorations is a common clinical problem. Difficulties related to color matching arise from structural differences that exist between metal-ceramic crowns and natural teeth, the limited range of available ceramic shades, inadequate shade guides, different types of metal alloys, and varying compositions of ceramic materials.

Purpose: The aim of this study was to investigate the influence of various metal alloys and 2 porcelains on the final color of metal-ceramic complex.