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Background and aim: It is not yet known what effects different titanium supports can have on the soft tissue response. Therefore, the aim of current Systematic Review and Meta-Analysis study was evaluate the effect of Various Titanium Abutment Modifications on the behavior of Peri-Implant Soft Tissue healing, inflammation, and maintenance.
Method: From the electronic databases, PubMed, Scopus, LILACS, Web of Science, EBSCO, LIVIVO, and Embase have been used to perform a systematic literature over the last ten years between 2011 and May 2021. For Data extraction, two reviewers blind and independently extracted data from abstract and full text of studies that included. Risk-Ratio with 95% confidence interval (CI), fixed effect model with Mantel-Haenszel method and Mean difference with 95% confidence interval (CI), fixed effect model and Inverse-variance method were calculated. Random effects were used to deal with potential heterogeneity and I2 showed heterogeneity. I2 values above 50% signified moderate-to-high heterogeneity. The Meta analysis have been evaluated with the statistical software Stata/MP v.16 (The fastest version of Stata).
Result: 571 studies were selected to review the abstracts, the full text of 14 studies was reviewed. Finally, five studies were selected. Risk ratio of bleeding on probing and Plaque index between test and control group was -0.03 (RR, -0.03 95% CI -1.15, 1.10. P>0.05) and 0.21 (RR, 0.21 95% CI -0.30, 0.72. P>0.05), respectively.
Conclusion: The present Systematic Review and Meta-Analysis study showed that there is no difference in Bleeding on probing, Plaque index and Probing depth between machined and modified titanium healing abutments.
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