Association of Prosthetic Angles of the Implant Supracrestal Complex with Peri-implant Tissue Mucositis

Overview

Journal Clin Exp Dent Res

Publisher Wiley

Specialty Dentistry

Date 2023 May 18

PMID 37199078

Authors

Piboon Rungtanakiat

Natchaya Thitaphanich

Wareerat Chengprapakorn

Martin Janda

Mansuang Arksornnukit

Nikos Mattheos

Affiliations

Soon will be listed here.

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.

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