骨移植复合种植义齿进行颌骨缺损功能重建的临床研究

目的评估对颌骨缺损患者行自体骨移植复合种植义齿修复重建的临床疗效。方法自2007—2012年,对11例因肿瘤、外伤造成颌骨缺损的患者,进行自体骨移植及延期植入种植体,并进行种植体支持的义齿修复,对修复后患者口颌系统的功能、外观进行评价和随访。结果本研究11例患者的自体移植骨均成活;共植入41枚种植体,除2例共4枚种植体发生种植体周围龈炎外,其余种植义齿功能及美观恢复均较理想。结论由外伤或肿瘤引起的颌骨缺损采取血管化或者非血管化自体骨移植,复合种植义齿的应用,能为患者恢复较好的外形和功能;种植体周围进行角化牙龈的移植有利于种植义齿耐受摩擦及咀嚼压力,并有利于维护种植体周围黏膜组织的健康。

The clinical study of bone grafts in combination with dental implants in functional reconstruction of jaw defects

Objective To evaluate the clinical outcome of bone grafts in combination with dental implants in jaw defects caused by tumor or trauma. Methods From 2007 to 2012,11 cases of jaw defects caused by trauma or tumor resection were reconstructed by bone grafts combined with dental implants. Function and esthetics of the patients were followed up and evaluated. Results All the bone survived after bone grafts. Forty-one implants were embedded and all succeeded except 2 cases involving 4 implants that suffered from implant gingivitis. All the other cases received excellent function and maxilla-facial figure. Conclusions Functional reconstruction by bone grafts in combination with dental implants is effective for patients with jaw defects. Transplant of keratinized gingiva around the im- plants may help the implants adapt friction and maintain the health of peri-implant mucosa.