口腔疾病防治2025，Vol.33Issue(9)：765-772,8.DOI:10.12016/j.issn.2096-1456.202550140
口腔显微镜辅助微翻瓣牙周植骨术治疗下颌磨牙Ⅱ度根分叉病变
Microscope-assisted minimally invasive flap periodontal bone grafting for mandibular molar grade Ⅱ furca-tion defects
摘要
Abstract
Objective To investigate the clinical efficacy of oral microscope-assisted microflap periodontal bone grafting in treating class Ⅱ furcation involvement in mandibular molars,and to provide clinical evidence for its treat-ment in furcation involvement.Methods This study was reviewed and approved by the institutional ethics committee,and informed consent was obtained from all patients.Sixty mandibular molars with class II furcation involvement caused by periodontitis were enrolled in a randomized controlled clinical study,utilizing a random number table method.Patients were categorized into a control group(n=30)and an experimental group(n=30)based on the surgical procedure employed.The control group underwent periodontal flap surgery with an internal oblique incision and vertical incision;this procedure was performed without the aid of a microscope.Conversely,the experimental group underwent micro flap periodontal bone grafting surgery without vertical incision;an oral microscope was used for this procedure.Both groups were analyzed 6 months after surgery,and postoperative gingival recession(GR),probing depth(PD),bleed-ing index(BI),vertical bone height increase(VBHI),pain level,and complications were recorded.Results Both groups showed improvement in PD and BI after 6 months compared to preoperative levels:the control group had a pre-operative PD of(7.33±1.72 mm)and a 6-month postoperative PD of(3.37±0.96 mm),with statistically significant dif-ferences(P<0.001).The preoperative PD of the experimental group was(7.27±1.57 mm),and the 6-month postopera-tive PD was(3.00±0.69 mm),with statistically significant differences(P<0.001).The BI of the control group decreased from 3.03±1.03 before surgery to 0.77±0.82 at 6 months after surgery(P<0.001),while the BI of the experimental group decreased from 3.20±1.09 before surgery to 0.73±0.64 at 6 months after surgery(P<0.001),and the differences were statistically significant.The experimental group showed a significant improvement in GR(0.70±0.59 mm)com-pared to preoperative GR(1.26±0.94 mm)at 6 months after surgery(P=0.007),while the control group showed an in-crease in GR(1.37±0.89 mm)at 6 months after surgery compared to preoperative GR(1.13±0.97 mm),but the differ-ence was not statistically significant(P=0.337).The inter group comparison results showed that there were no statisti-cally significant differences in PD and BI between the two groups at 6 months after surgery(PD:P=0.096,BI:P=0.861);The GR of the experimental group was lower than that of the control group,and the difference was statistically significant(P=0.001).There was no statistically significant difference in postoperative VBHI between the two groups(P=0.128).The pain level scores of the experimental group were lower than those of the control group at 4 and 24 hours after surgery(P<0.001).None of the patients experienced complications.Conclusion Microflap periodontal bone graft-ing assisted by an oral microscope effectively improves the periodontal condition of patients with grade Ⅱ root bifurca-tion lesions of mandibular molars,and the bone grafting effect is good,with mild pain and good safety.关键词
牙周炎/根分叉病变/微创翻瓣/植骨术/口腔显微镜/牙龈退缩/探诊深度/出血指数/垂直骨高度增加量Key words
periodontitis/furcation defects/minimally invasive flap/bone graft/oral microscope/gingival recession/probing depth/bleeding index/vertical bond height increment分类
医药卫生引用本文复制引用
黄容裕,高雳,罗琦,萧剑浩,马珊珊,白瑞琦..口腔显微镜辅助微翻瓣牙周植骨术治疗下颌磨牙Ⅱ度根分叉病变[J].口腔疾病防治,2025,33(9):765-772,8.基金项目
广东省基础与应用基础研究基金项目(2022A1515010855) （2022A1515010855）
中山市医学科研项目(2022A020131) This study was supported by the grants from Guangdong Province Basic and Applied Basic Research Fund Project(No.2022A1515010855)and Zhongshan Medical Research Project(No.2022A020131). （2022A020131）
