摘要
目的:本文介绍一种改良式微创上颌窦底内提升术,并评估其临床疗效.方法:收集上颌窦底内提升术种植病例45例,上颌后牙剩余骨量高度2.9～6 mm,患者依手术方式不同分为对照组和观察组,对照组采用骨凿冲顶法,观察组为环切式微创术,即:大直径骨钻、低转速、大扭矩钻孔法,推挤上颌窦底壁向上移位及增强种植体初期稳定性.两组患者术后6个月行种植体上部结构修复.结果:观察组术后满意度优于对照组;影像学测量及临床检查发现,两组患者临床疗效差异无统计学意义.结论:采用不翻瓣、不缝合、不植骨的改良式微创上颌窦底提升术,具有手术创伤小、患者体验佳、减少操作步骤、节省手术费用等优点.
Abstract
Objective:To introduce a minimally invasive method for sinus floor elevation through a circum-ferential incision,aiming to simplify the operation steps and reduce postoperative trauma.Methods:A total of forty-five cases of sinus floor elevation for dental implant,with residual bone height(RBH)at a range of 2.9-6 mm,were collected and randomly divided into the control and observation groups.Topic osteotome technique was used in the control group,and minimally invasive surgery with circum-ferential incision was applied in the observation group.The special measures included the use of a low-speed,high-torque,and large-diameter bone drill that pushes the floor of the maxillary sinus upward,increasing the primary stability of the implant.After 6 months,superstructures were restored in both groups.Results:The observation group showed a higher postoperative satisfaction rate as compared with control group by postoperative surveys,but no difference in efficacy was found between the two groups after radiological and clinical examinations.Conclusion:This one-stage approach without inci-sion,flap,suture,or bone grafting is less invasive,provides a better patient experience,reduces oper-ative steps,and saves surgical costs.
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