Related Experiment Video
Updated: Jan 14, 2026
Quasistatic Mechanical Testing for Computer-Aided Design and Manufacturing Occlusal Veneers Cemented to Milled Dentin Analog Material
Published on: December 20, 2024
Relationship between bruxism and different types of mechanical complications in implant-supported prosthesis: A
Rafael de Araujo Vidal1, Victor Cobalchini Martins1, Elisa Zancanaro de Figueiredo1
1Post-Graduate Program in Dentistry, School of Health and Life Sciences, Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS), Porto Alegre, Brazil.
Purpose:
This review aimed to assess the prevalence and association between bruxism and different types of mechanical complications in implant-supported prosthesis, which is missing in the literature.
Methods:
A systematic review with meta-analysis was carried out in PubMed/Medline, Web of Science, Embase, Cochrane Library, LILACS, and Scopus. No grey literature was included, but a manual search in the specialized literature was performed. Observational descriptive and/or analytical studies (i.e., cross-sectional, case-control, and cohort) since 1984, which correlated mechanical failure in implant-supported prosthesis with and without bruxism, were included. All selected studies for the systematic review underwent bias quality analysis.
Results:
A total of 934 studies were found in PubMed/MEDLINE, Embase, Web of Science, Scopus, Cochrane, and LILACS. Studies in duplicate were removed, and 320 were selected for complete study reading. Finally, 20 were included in the systematic review, and 13 were included in the final selection for meta-analysis. The presence of unspecific mechanical failures was associated with the presence of bruxism, which increased the overall risk (odds ratio = OR) 6.10 times. In the specific mechanical complications, the following subgroup analysis results were found, also showing an increased risk with bruxism: (a) implant fracture (OR = 16.14), (b) prosthesis (acrylic and/or teeth) failure (OR = 3.66), (c) ceramic fracture (OR = 4.36), (d) prosthetic abutment fracture (OR = 13.88), (e) prosthetic screw fracture (OR = 7.07), (f) prosthetic screw loosening (OR = 3.40), and (g) prosthesis mobility (OR = 4.51).
Conclusions:
Bruxism has increased the risk of unspecific and specific mechanical complications assessed in implant-retained prosthesis in all subgroups analyzed in this systematic review with meta-analysis.
