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在拔除牙根与牙槽骨壁间空隙很小的牙根时,我们有时先用骨凿在牙根与牙槽骨壁间凿开一小间隙者用牙挺插入此间隙撬出牙根。
In the removal of root and alveolar bone wall when there is a small gap between the root, we sometimes use the first osteotome in the root and alveolar bone wall between a small gap to open the gap with the teeth inserted pry pry.