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目的评估穿牙槽嵴顶四周剥离上颌窦底提升术临床应用效果。方法上颌后牙缺失剩余牙槽骨高度不足(<10mm)患者29例,共37个种植位点进行穿牙槽嵴顶四周剥离上颌窦底提升术。CBCT测量术前剩余牙槽骨高度及术后上颌窦底提升高度。结果 5例患者5个位点术中黏膜穿孔,位点黏膜穿孔发生率为13.51%。其余24例患者32个种植位点术前剩余牙槽骨高度从1.30~9.99mm,平均5.28±2.08mm,术后上颌窦底提升高度从4.61~13.47mm,平均9.62±2.09mm。黏膜未穿孔的24例患者32个位点术中同期植入种植体29颗,种植体长度从11.0~11.5mm,平均11.10±0.21mm。结论穿牙槽嵴顶四周剥离上颌窦底提升术对上颌窦底提升幅度大,可达到侧壁开窗上颌窦底提升术提升高度,扩大了穿牙槽嵴顶上颌窦底提升术适应证。黏膜穿孔是其主要并发症。
Objective To evaluate the clinical effect of maxillary sinus lifting at the crest of alveolar ridge. Methods Twenty-nine patients with missing alveolar bone height (<10mm) in maxillary posterior teeth were enrolled in this study. A total of 37 implant sites were dissected for the maxillary sinus floor lift. CBCT measurement of alveolar bone height before surgery and postoperative maxillary sinus lifting height. Results The mucosal perforation was found in 5 sites in 5 patients. The incidence of site mucosal perforation was 13.51%. The remaining 24 patients had 32 alveolar remnant alveolar bone height from 1.30 to 9.99 mm (average 5.28 ± 2.08 mm) and postoperative maxillary sinus lifting height from 4.61 to 13.47 mm (average 9.62 ± 2.09 mm). In the non-mucosal non-perforated 24 patients, 29 implants were implanted in 32 sites at the same time. The length of implants ranged from 11.0 to 11.5 mm with an average of 11.10 ± 0.21 mm. Conclusion The maxillary sinus lift can improve the height of maxillary sinus floor by maxillary alveolar lifting, and the maxillary sinus lift can be achieved by lateral fenestration. The indications of maxillary sinus lifting at the alveolar crest are enlarged. Mucosal perforation is its main complication.