Marginal Bone Changes at Bone-Level Implants With Narrow or Standard Diameter Abutments: 1-Year Results of a Randomised Controlled Trial.

ABSTRACT:

Aim

To evaluate changes in the peri-implant marginal bone level at implants restored with narrow or standard-diameter abutments after 12 months.

Material & methods

Twenty-eight partially edentulous patients were randomly allocated to two groups. The test group consisted of 14 patients restored with a 2.9 mm diameter abutment (21 implants), while the control group included 14 patients restored with a 4.1 mm diameter abutment (17 implants). The primary outcome variable was the radiographic change in the peri-implant marginal bone level at 12 months, measured as the distance from the implant shoulder to the first bone-to-implant contact (fBIC). Secondary outcome variables included clinical peri-implant parameters, the papilla index, biological and mechanical complications, pati

SUBMITTER: Linares A 

PROVIDER: S-EPMC12491924 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature