Convex Versus Concave Emergence Profile of Implant-Supported Crowns in the Aesthetic Zone: 3-Year Results of a Randomized Controlled Trial.

ABSTRACT:

Aim

To evaluate the 3-year clinical and radiographic outcomes of implant-supported restorations with different emergence profiles (CONVEX vs. CONCAVE).

Materials and methods

A total of 47 patients received a single implant in the aesthetic zone and were allocated to one of three groups: (1) CONVEX: customized provisional with a convex emergence profile (n = 15); (2) CONCAVE: customized provisional with a concave profile (n = 16); (3) Control: no provisional restoration (n = 16). Final crowns in groups CONVEX and CONCAVE were fabricated to replicate the emergence profile of the respective provisional restorations. Follow-ups were performed at baseline, 6 months, 1 year and 3 years. The primary outcome was mid-facial mucosal recession and secondary outcomes included clinical,

SUBMITTER: Endres J 

PROVIDER: S-EPMC12531365 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature