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.
Dental ImplantMinimally InvasiveMaxillary Sinus ElevationResidual Bone Height
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