Scanning electron microscope study for axial and marginal fitness of three different ceramometal alloys.

In this study the SEM was used to measure the axial and marginal gap distance and to declare the marginal openings and faulty castings of three different ceramometal alloys a precious, semi-precious and nonprecious alloy systems that are commercially used in crown and bridge prosthodontics and to make a comparison between them in regard to axial and marginal gap distance.