Journal of Oral Science Research ›› 2024, Vol. 40 ›› Issue (4): 356-359.DOI: 10.13701/j.cnki.kqyxyj.2024.04.014

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Influence of Advanced Periodontal Defect on Implant Surgery of Mandibular First Molars: A Retrospective Study

ZHU Jie*, QIN Yi, PENG Dong, LI Cong, LIU Cunrui   

  1. Department of Stomatology, Peking University International Hospital, Beijing 102206, China
  • Received:2023-11-16 Published:2024-04-22

Abstract: Objective: To determine whether advanced periodontal defect (APD) was the risk factor of guided bone regeneration (GBR) in implant surgery of mandibular first molar. Methods: One-hundred and seventy-six patients with 179 implants placed in naturally healed mandibular first molars sites were included. The time interval between tooth extraction and implant surgery was 3-12 months. Age, sex, the time interval, and APD (yes or no) of extracted teeth were recorded. The risk factors of GBR were assessed using Logistic regression. Results: Adjusting for age, sex , and the time interval, the risk of GBR for implant surgery was 4.738 times higher in mandibular first molars with APD than non-APD sites(95%CI:1.650-13.609, P<0.05). Conclusion: APD increases the risk of GBR in implant surgery of mandibular first molar.

Key words: mandibular first molar, advanced periodontal defect, implant