The aim of the study is to evaluate the marginal bone level (MBL) and pink aesthetic score (PES) changes on the short, medium and long-term, on a retrospective cohort of patients who received at least one "biotype implant" (DEI ITALIA SRL, Mercallo VA, Italy) with convergent transmucosal profile. Ninety-seven patients with at least one periapical x-ray taken on the day of implant placement and at least one taken in the following 10 years were included for MBL analysis and 90 patients who had at least one photograph taken on the day of implant loading, and one taken in the following 10 years for PES analysis. The radiographs were divided into 4 groups: (1) implant placement; (2) 1-2 years follow-up (short-term); (3) 3-6 years follow-up (medium-term); (4) ≥7 years follow-up (long-term). Photographs were grouped similarly, except that the first group was relative to the day of prosthetic loading. MBL was measured using ImageJ software. Results were analyzed with Generalized Estimating Equations method using SPSS software, the P value was set at \<0.05 for significance.
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Marginal bone level
Timeframe: 1 to 10 years after implant placement compared to baseline
Pink Esthetic Score
Timeframe: from baseline (implant placement) to 10 years