Comparative study on wear behaviors of interproximal tooth enamel against CAD/CAM ceramic materials at interproximal contact zone

MZ and ZLS caused more severe enamel wear, with their damage significantly mitigated by polishing. In contrast, PICN and LS exhibited superior compatibility with IE, resulting in milder wear, although LS caused notable damage under sliding conditions due to three-body wear associated with ceramic particle exfoliation. Polishing effectively reducing antagonist IE wear caused by LS but offering limited benefit for PICN.