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目的探讨上颌窦内提升术同期牙种植术修复剩余牙槽骨高度(RBH)的上颌后牙缺失颌骨骨量不足的临床疗效。方法选择上颌骨骨量不足行种植修复患者45例(85颗种植体)均行上颌窦内提升术同期牙种植术,其中RBH<5 mm患者加用骨挤压并植入骨粉。分别于术后1、3、6、12个月复查X线检查种植体保留情况,并观察骨改建骨小梁形成及骨吸收情况。结果患者均无上颌窦炎症,种植体周围边缘骨稳定,均获良好骨结合。A组、B组种植体的留存率分别为100.0%和95.6%,差异无统计学意义(χ2=0.51,P>0.05);上颌窦底不同提升高度之间的窦底改建程度比较,差异无统计学意义(χ2=4.49,P>0.05)。结论上颌窦内提升术同期牙种植术可有效修复上颌后牙缺失,颌骨骨量不足,对RBH<5 mm的患者有较好的留存率。
Objective To investigate the clinical effects of maxillary sinus augmentation simultaneous mandibular odontogenic reconstruction for residual bone height (RBH) in maxillary posterior teeth with missing bone. Methods Forty-five patients (85 implants) underwent maxillary sinus augmentation simultaneous dental implant surgery were selected. The patients with RBH <5 mm underwent bone compression and bone meal implantation. X-ray examination of implant retention was performed at 1, 3, 6, and 12 months after operation, and bone formation and bone resorption were observed. Results The patient had no maxillary sinus inflammation and the marginal bone around the implant was stable with good osseointegration. The survival rates of group A and group B were 100.0% and 95.6%, respectively, with no significant difference (χ2 = 0.51, P> 0.05). There was no significant difference in the remodeling of sinus floor between different lifting heights of maxillary sinus floor Statistical significance (χ2 = 4.49, P> 0.05). Conclusions Simultaneous maxillary sinus aspiration surgery can effectively repair maxillary posterior teeth loss and lack of bone mass in the maxilla. There is good retention rate in patients with RBH <5 mm.