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目的:通过临床试验评估一种上颌窦底微创提升技术的疗效。方法:采用上颌窦底微创提升技术,对11例14颗上颌后牙行经上颌窦底微创提升技术并同期植入短种植体。利用10例13颗使用扩孔钻的上颌窦冲顶技术作为临床试验的对照组。实验组与对照组缺牙区平均余留牙槽嵴高度分别为2.81mm(1.60mm～4.00mm)和3.10mm(0.96mm～3.99mm)。术后6个月行暂冠修复,进行咬合训练及软组织塑形,3个月后永久修复。定期复诊,检查上颌窦及种植体骨结合情况,CBCT图像测量骨增量水平。结果:实验组及对照组均无种植体松动、脱落及上颌窦炎发生,CBCT示种植体与周围组织形成良好的骨性结合。经2～28个月随访观察,临床效果良好。实验组和对照组平均窦底垂直骨增量分别为5.87mm和5.45 mm。讨论:该上颌窦底微创提升技术是一种创伤小,最大程度的保留了种植位点处的自体骨,提高成功率,但对临床技术要求高。结论:该上颌窦底微创提升联合短种植体同期植入是一种创伤小、行之有效的上颌后牙区种植外科技术。可用于上颌窦底垂直骨量严重不足,余留牙槽骨高度不足4mm的病例。
OBJECTIVE: To evaluate the efficacy of a minimally invasive sinus augmentation technique in clinical trials. Methods: Using minimally invasive maxillary sinus floor lifting technique, 11 cases of maxillary sinus of 11 maxillary posterior teeth were treated with minimally invasive lifting technique and short implants were implanted in the same period. Ten cases of thirteen reaming maxillary sinus techniques were used as a control group for clinical trials. The average remaining alveolar ridge height in experimental group and control group were 2.81mm (1.60mm ~ 4.00mm) and 3.10mm (0.96mm ~ 3.99mm) respectively. 6 months after the line crown repair, bite training and soft tissue shaping, 3 months after permanent repair. Regular follow-up, check the maxillary sinus and implant bone union, CBCT image measurement of bone increments. Results: There was no loosening, exfoliation and maxillary sinusitis in the experimental group and the control group. CBCT showed that the implant formed good osseointegration with the surrounding tissues. After 2 to 28 months of follow-up observation, the clinical effect is good. In the experimental group and the control group, the average sinus bone augmentation was 5.87 mm and 5.45 mm, respectively. Discussion: The maxillary sinus floor minimally invasive lifting technology is a trauma, the maximum retention of the autologous bone at the planting site to improve the success rate, but the clinical requirements. Conclusion: The minimally invasive maxillary sinus augmentation combined with short implant implantation is a less traumatic and effective maxillary posterior dental implant surgery. Can be used for a serious lack of vertical bone at the bottom of the sinus, leaving the alveolar bone height less than 4mm cases.