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目的:观察口腔颌面部严重创伤后牙缺失伴骨缺损的种植修复临床效果。方法:颌面部严重创伤后牙缺失伴骨缺损患者20例,其中多颗牙连续缺失者12例,共植入ITI Straumann等常用牙种植体65枚,其中5例行骨劈开+骨挤压+骨引导再生(guided bone regeneration,GBR)技术。2～6个月后行上部结构修复,定期随访,检查种植体骨结合情况、种植体周围软组织与修复体情况。结果:本组病例修复后经1～5年的临床观察,除1例所植入的5枚种植体中的1枚,在修复后3年脱落,其余患者各项评价指标均良好,种植体存留率为98%。结论:颌面部严重创伤后的牙列缺损,尤其多颗牙的连续缺失,很难采用其他固定修复方法来完成。种植修复具有不损伤余留牙、美观舒适、咀嚼效果好等优点,是一种良好的修复方法。
Objective: To observe the clinical effect of dental implants and bone defects in oral and maxillofacial implants after implantation. METHODS: Twenty patients with maxillofacial severe traumatic tooth loss and bone defect were selected. Among them, there were 12 consecutive patients with multiple teeth missing. Sixty-five dental implants, including ITI Straumann, were implanted. Among them, 5 had osteotomy + Pressure + guided bone regeneration (GBR) technique. 2 to 6 months after the repair of the upper structure, regular follow-up, check the implant bone union, implant soft tissue and prosthesis situation. Results: After 1 to 5 years of clinical observation, one case out of the 5 implants implanted in one case was removed 3 years after repair, and the rest of the patients had good evaluation indexes. The implants The retention rate is 98%. Conclusion: The dentition defect after maxillofacial trauma, especially the continuous loss of multiple teeth, is difficult to use other fixed repair methods. Implantation repair without leaving residual teeth, beautiful and comfortable, good chewing effect, etc., is a good method of repair.