Effect of supportive periodontal therapy on long-term implant survival rate
최소정, 김옥수,
소속 상세정보
최소정 ( Choi So-Jeong ) - Chonnam National University School of Dentistry Dental Science Research Institute
김옥수 ( Kim Ok-Su ) - Chonnam National University School of Dentistry Department of Periodontology
Abstract
The aim of this study was to determine the condition of supportive periodontal therapy (SPT) in implant patients and the effect of SPTon implant long-term survival. Implants placed at the Dept. of Periodontology, Chonnam National University Dental Hospital over a5-year period, were traced for up to 8 years. Patients who had visited the hospital at least once a year were defined as regular SPT, andpatients who were treated by active periodontal therapy were defined as patients with periodontitis. Kaplan-Meier survival analysis wasperformed based on the observation periods, and the effect of SPT and history of periodontitis on implant survival assessed by chisquaretest. A total of 183 patients (age: 21?91, 98 males and 85 females), and 508 implants were used for this study. Three hundredeight implants were under SPT and 87 implants was under regular SPT. For the patients with periodontitis 136 implants were placed. The 5-year survival rate was 94.8%. The overall survival rate in patients who received SPT was 97.1% and 91.0% for those who didnot (p =0.004). The survival rate in patients who received regular SPT was 97.7%, and 96.8% for patients received irregular SPT. Thesurvival rate was 93.4% in patients with periodontitis and 95.2% in patients without periodontitis. Among patients with periodontitis,the survival rate was 100.0% in patients who received regular SPT and 89.2% for irregular SPT (p =0.012). These results suggest thatregular SPT improves implant survival rate and is more effective in patients with periodontitis.
키워드
Dental implants; Maintenance; Periodontitis; Survival rate
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