Biocompatibility study of lithium disilicate and zirconium oxide ceramics for esthetic dental abutments

Abstract

Our results demonstrate that a biomaterial, here LS₂, can be modified using simple surface changes in order to finely modulate soft tissue adhesion. Strong adhesion at the abutment associated with weak migration assists in gingival wound healing. On the same material, polishing can reduce cell adhesion without drastically modifying cell migration. A comparison of LS₂ and ZrO₂ ceramic showed that LS₂ was more conducive to creating varying tissue reactions. Our results can help dental surgeons to choose, especially for esthetic implant abutments, the most appropriate biomaterial as well as the most appropriate surface treatment to use in accordance with specific clinical dental applications.