Abstract
Statement of problem
Proximal contact loss between implant-supported prostheses and adjacent natural teeth
is a complication that has been reported in clinical practice. However, the prevalence
of the condition is unclear.
Purpose
The purpose of this systematic review and meta-analysis was to assess the proportion
of reported proximal contact loss between implant-supported prostheses and adjacent
natural teeth.
Material and methods
This systematic review followed the Preferred Reporting Items for Systematic Reviews
and Meta-Analyses (PRISMA) methodology criteria and was registered on the international
prospective register of systematic reviews (PROSPERO) platform (CRD42021225138). The
electronic search was conducted by using the PubMed/MEDLINE, Embase, and Cochrane
Library databases to September 2020. The formulated population, intervention, comparison,
outcome (PICO) question was “Is there a correlation of the proximal contact loss between
implant-supported prostheses and the adjacent natural tooth?” A single-arm meta-analysis
of proportion was performed to evaluate the cumulative prevalence of survival and
complication rates.
Results
This review included 10 studies, half of which presented proximal contact loss rates
higher than 50%. In the general analysis, the open proximal contact showed a cumulative
proportion of 41% (confidence interval: 30% to 53%; heterogeneity: I2=98%; t2=0.578; P<.01). From the subanalysis, the mesial contact (47%; confidence interval: 32% to
62%; heterogeneity: I2= 96%; t2=0.657; P<.01) and the mandibular arch (41%; confidence interval: 30% to 52%; heterogeneity:
I2=92%; t2=0.302; P<.01) were found to have higher prevalence.
Conclusions
The prevalence of proximal contact loss was high, occurring more frequently with the
mesial contact and in the mandibular arch. Significant differences were not found
in relation to sex or between the posterior and anterior regions.
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Article info
Publication history
Published online: July 19, 2021
Footnotes
This research did not receive any specific grant from funding agencies in the public, commercial, or not-for-profit sectors.
Identification
Copyright
© 2021 by the Editorial Council for the Journal of Prosthetic Dentistry.
