Experimental Study of Surface Roughness of Dental Ceramics After Polishing with Three Types of Polishing Systems.

Aims And Objectives: This study evaluated the surface roughness of three dental ceramics after polishing with three types of extraoral ceramic polishing sets.

Materials And Methods: One hundred and twenty specimens were fabricated from feldspathic porcelain, lithium disilicate, and zirconia ceramics. The specimens were randomly allocated into four subgroups ( = 10).