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我们在临床牙种植体植入手术中及术后发现ZI例牙种植体折断病历，现总结简析如下。折断原因①种植体内部缺陷机械加工时有隐性损伤；②热处理工艺过程缺欠，致使种植体脆性过大；③种植体外部缺陷，颈部直径过细；④人工牙冠受力过大；⑤人工牙冠受力不均匀；③形成骨孔深度不
We in the clinical dental implant surgery and postoperative ZI cases of dental implants broken medical records, are summarized as follows. Broken reasons ① implants damage internal machining implant implicit damage; ② heat treatment process defects, resulting in implants too large; ③ implants external defects, neck diameter too small; ④ artificial crown too much force; ⑤ artificial Crown uneven force; the formation of bone depth is not