慢性牙周炎对平台转移种植体边缘骨吸收的影响

Abstract

Abstract: Objective To explore the influence of periodontitis on platform-switched implant marginal bone level alterations compared with the periodontal health group. Methods From January 2013 to January 2016，20 periodontitis patients（PP） and 20 health-periodontal patients（HP） with a total of 56 Ankylos implants in the posterior region were?incorporated into the retrospective study. Peri-implant conditions were examined and X-ray during the follow-up periods was recorded in both groups.Radiographic marginal bone loss of implants and adjacent teeth was calculated and analyzed with SPSS13.0 software package. Results No implant loss occurred in both groups with the mean prosthesis function time of 39.2±6.1months. The annual crestal bone loss was significantly greater at teeth than that around implants in the PP group （P<001）, while no statistically significant difference was found in the HP group（P=0.849）. No statistically significant difference was found between groups when comparing the peri-implant marginal bone loss（P=0.612）.Conclusions The platform-switched implant marginal bone level seemed more stable in comparison to that around the natural teeth in periodontitis patients，which can obtain the same successful implant restoration as patients with health periodontium.

Key words: Periodontitis, Platform switching, Peri-implantitis, Annual crestal bone loss

CLC Number:

R781.4+2

References 18

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An assessment of periodontitis on platform-switched implant marginal bone level alterations

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