Association of prosthetic angles of the Implant Supracrestal Complex with peri‐implant tissue mucositis

Abstract

Objectives: The aim of this study was to investigate the association of the Mucosal Emergence Angle (MEA) with peri-implant tissue mucositis.Material and Methods: Forty-seven patients with 103 posterior bone level implants underwent clinical and radiographic examination. Three-dimensional data from Cone Bean Computer Tomography and Optica Scan were transposed. Three angles were defined: MEA, Deep Angle (DA) and Total Angle (TA) and measured at six sites for each implant.Results: There was a significant correlation between MEA and Bleeding on Probing for all sites with an overall odds ratio of odd ratio 1.07 (95% confidence interval [CI] 1.05-1.09, p < 0.001). Sites with MEA ≥ 30°, 40°, 50°, 60°, and 70°had a higher risk for bleeding with an odds ratio of 3. 1, 5, 7.5, 11.4 and 33.55, respectively. When all 6 sites of an implant prostheses had MEA ≥ 40°, the risk of having bleeding at all 6 sites was 9.5 times higher (95% CI 1.70-52.97, p = 0.010).Conclusions: Maintaining MEA no wider than 30°−40°is advisable, while the aim should be to keep this angle as narrow as clinically feasible. Registered in Thai Clinical Trials Registry: http://www.thaiclinicaltrials.org/show/TCTR20220204002.

Computer-Aided Design/Computer-Aided Manufacturing of Customized Abutment for Rehabilitating a Malpositioned Implant Using Digital Flow: A Case Report

“…Good hygiene can increase the chances of implant survival and can help maintain the health of peri-implant tissue. When it is impossible to install the implant in an optimal location, the team must analyze, with the patient, the hygienic condition of the future rehabilitation and decide on its feasibility, as buccal projections of the prosthetic crown invariably create favorable conditions for the appearance of constant mucositis [ 33 ]. This complicates the maintenance of malpositioned implants and invariably the need for using special cleaning techniques.…”