牙槽骨劈开术同期牙种植的临床应用

目的　评价牙槽骨劈开技术在口腔种植中应用的临床效果。方法　对116例缺牙区牙槽嵴高度大于12 mm，颊舌向厚度在3~5 mm之间的牙列缺损患者，行牙槽嵴劈开同期植入种植体治疗。共植入ITI种植体147枚，Replace种植体52枚。根据骨劈开术后间隙及唇颊侧骨壁厚度等不同情况选择植入或不植入自体骨、人工骨粉等修复手段。术后6月种植修复，定期随诊。结果　种植区软组织愈合好，无红肿，颊舌向牙槽骨较种植前明显增宽。术后除1颗种植体失败取出外，其余种植体稳固，种植修复体能正常使用。复诊时X线检查骨吸收≤1 mm。结论　骨劈开术使牙槽骨宽度在3~5 mm的病例有了一期种植的可能，是一种简单有效的增宽牙槽骨的方法。

The application of alveolar bone splitting technique with simultaneous implant placement

Objective The aim of this study was to investigate the application of alveolar bone splitting technique in dental implant,and to evaluate the clinical efficacy.Methods116 patients were included in this study whose alveolar ridge height all exceeded 12mm,and bucco-lingual alveolar ridge thickness was between 3 and 5 mm.147 ITI implants and 52 Replace implants were placed simultaneously after alveolar ridges splitting.If the gap after splitting was more than 1 mm,the thickness of labial alveolar bone was less than 1mm,or labial bone defect existed in the root area of implant,bone substitute grafting and guide bone regeneration technique would be used.Superstructures were restored 6 months after implant placement,and regular follow-ups were done.ResultsThe soft tissue in the surgical area healed well and no swelling existed.The buccolingual alveolar ridges were obviously widened.Except that one implant failed,all implants were stable and functioned well.X-rays showed marginal bone loss were less than 1mm.ConclusionsBone splitting technique was a simple and effective method for alveolar bone augmentation,and it made it possible for those patients whose alveolar ridges thickness was between 3-5mm to take a one-stage implant placement surgery.