结论保留修复体采用引导骨再生技术治疗种植体周围炎具有良好的效果。

Conclution: GBR technique is a practical Method to treat peri-implanting when keeping restoration.

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目的：评价骨形态蛋白联合引导组织再生技术修复牙周骨缺损的临床效果。

Objective: To evaluate the effects of combination of bone morphogenetic protein with technique of guide tissue regeneration on the repair of periodontal bone defects.

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