The International Journal of Oral & Maxillofacial Implants



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Int J Oral Maxillofac Implants 29 (2014), No. 6     19. Dec. 2014
Int J Oral Maxillofac Implants 29 (2014), No. 6  (19.12.2014)

Page 1271-1280, doi:10.11607/jomi.3544, PubMed:25397791

History of Periodontitis as a Risk Factor for Long-Term Survival of Dental Implants: A Meta-Analysis
Wen, Xiujie / Liu, Rui / Li, Gang / Deng, Manjing / Liu, Luchuan / Zeng, Xian-Tao / Nie, Xin
Purpose: The authors conducted a meta-analysis to determine the effect of a history of periodontitis on the long-term survival of dental implants.
Materials and Methods: An electronic search of PubMed and a supplemental manual search were conducted. Studies published in English through March 2013 were included in the meta-analysis. Survival rates, success rates, periodontal status, types of periodontitis, most recent follow-up time, and other information were extracted and analyzed.
Results: Thirteen studies involving 2,011 patients and 6,802 implants were included in the meta-analysis. The results revealed that a history of periodontitis, especially aggressive periodontitis, is associated with significantly higher risks of long-term implant failure versus a healthy periodontium (risk ratio [RR] = 1.03, 95% confidence interval [CI] = 1.02 to 1.04). Based on the limited number of included articles, a subgroup analysis showed that a history of periodontitis had no statistically significant effect on implant survival up to 100 months of follow-up (RR = 1.03, 95% CI = 0.99 to 1.06); however, it did significantly affect implant survival within a period of 101 to 200 months (RR = 1.03, 95% CI = 1.02 to 1.04). Some implant systems also significantly influenced the correlation between a history of periodontitis and implant survival.
Conclusion: Within the limitations of this meta-analysis, a history of periodontitis is estimated to be a statistical risk factor for the long-term survival of dental implants. This negative effect would be most evident in patients with aggressive periodontitis, severe periodontitis, or after a longer follow-up.

Keywords: implant survival, implants, meta-analysis, periodontitis, risk factors
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