Shanghai Journal of Stomatology ›› 2023, Vol. 32 ›› Issue (1): 69-74.doi: 10.19439/j.sjos.2023.01.013

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A retrospective cohort study of risk factors for prevalence of implant biological complications

XU Xiao-qian1, LI Lei2   

  1. 1. Wusheng Road Outpatient Department, School and Hospital of Stomatology, Wuhan University. Wuhan 430032;
    2. Department of Dental Implant, School and Hospital of Stomatology, Wuhan University. Wuhan 430079, Hubei Province, China
  • Received:2021-09-16 Revised:2022-05-16 Online:2023-02-25 Published:2023-06-12

Abstract: PURPOSE: To analyze the risk factors of biological complications after implant-fixed denture restoration. METHODS: Seven hundred and twenty-five implants were placed between March 2012 and March 2016. Follow-up period was 5 to 9 years. The implant mucosal index (IMI) and implant marginal bone loss (MBL) were measured at 3 months-1 year, 2-3 years, 4-5 years, 6-7 years and 8-9 years after restoration. The prevalence and risk factors of peri-implantitis and mucositis were analyzed. SPSS 28.0 software package was used to analyze the date. RESULTS: The implant survival rate of 5 years was 98.7%. The prevalence of mucositis and peri-implantitis were 37.5% and 8.3% at 8 to 9 years. Smoking, periodontitis, narrow diameter, rough neck , anterior location, bone augmentation caused higher prevalence of peri-implantitis or mucositis (P<0.05). CONCLUSIONS: Smoking, periodontitis, implant diameter, implant design, implant location and bone augmentation are the risk factors of implant biological complications.

Key words: Mucositis, Peri-implantitis, Risk factor

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