期刊
PEERJ
卷 11, 期 -, 页码 -出版社
PEERJ INC
DOI: 10.7717/peerj.15010
关键词
Dental implants; Zirconium; Titanium; Evidence-based dentistry; Ceramic
This study assessed and compared the clinical outcomes of titanium and zirconium implants, including survival rate, success rate, and peri-implant indices. The results showed that zirconium implants may have lower survival rate and significantly lower success rate compared to titanium implants, but no significant differences were found in other indicators. Therefore, the performance of zirconium implants should be rigorously evaluated before entering the market.
Purpose. To quantitatively assess and compare the clinical outcomes, including survival rate, success rate, and peri-implant indices of titanium and zirconium implants in randomized controlled trials. Methods. The electronic databases searched included the Cochrane Central Register of Controlled Trials (CENTRAL), Medline via Ovid, EMBASE, and Web of Science. Randomized controlled trials (RCTs) that reported the effects of zirconium implants on primary outcomes, such as survival rate, success rate, marginal bone loss (MBL), and probing pocket depth (PPD), compared to titanium implants were included in this review. Two reviewers independently screened and selected the records, assessed their quality, and extracted the data from the included studies. Results. A total of four studies from six publications reviewed were included. Two of the comparative studies were assessed at minimal risk of bias. Zirconium implants may have a lower survival rate (risk ratio (RR) = 0.91, CI [0.82???1.02], P = 0.100, I2 = 0%) and a significantly lower success rate than titanium implants (RR = 0.87, CI [0.78???0.98], P = 0.030, I2 = 0%). In addition, there was no difference between the titanium and zirconium implants in terms of MBL, PPD, bleeding on probing (BOP), plaque index (PI), and pink esthetic score (PES) (for MBL, MD = 0.25, CI [0.02???0.49], P = 0.033, I2 = 0%; for PPD, MD = ???0.07, CI [???0.19???0.05], P = 0.250, I2 = 31%). Conclusion. Zirconium implants may have higher failure rates due to their mechanical weakness. Zirconium implants should be strictly assessed before they enter the market. Further studies are required to confirm these findings.
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