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目的采用Bio-Oss骨移植联合Bio-Guide胶原膜的方法治疗下颌磨牙Ⅱ度根分叉病变,评价临床疗效。方法选取了31例双侧下颌磨牙患有Ⅱ度根分叉的患者,采用分口对照实验的方法,一侧采用Bio-Oss骨移植联合Bio-Guide胶原膜,另一侧采用单纯翻瓣术。结果双侧经牙周手术治疗后6个月及1年的牙龈指数、附着水平及根分叉探诊深度都有明显改善且差异具有统计学意义(P<0.05),疗效与单纯翻瓣术组比较各指标差异也有统计学意义(P<0.05)。结论 Bio-Oss骨移植联合Bio-Guide胶原膜治疗下颌磨牙Ⅱ度根分叉比单纯翻瓣术具有更好的临床效果。
Objective To evaluate the clinical efficacy of Bio-Oss bone graft combined with Bio-Guide collagen membrane in the treatment of degree Ⅱ root bifurcation lesions in mandibular molars. Methods 31 cases of bilateral mandibular molar with degree Ⅱ root bifurcation were selected. The control group was divided into two groups: Bio-Oss bone graft and Bio-Guide collagen membrane on one side and simple flap on the other side . Results Both gingival index, attachment level and depth of root bifurcation exploration at 6 months and 1 year after bilateral periodontal surgery were significantly improved (P <0.05). The curative effect was significantly higher than that of simple flap There were also significant differences in the indexes between the two groups (P <0.05). Conclusion Bio-Oss bone graft combined with Bio-Guide collagen membrane treatment of mandibular molars Ⅱ degree root bifurcation than simple flap surgery has a better clinical effect.