Objective: To evaluate the efficacy of the sinus balloon technique via transcrestal maxillary sinus floor elevation. Subjects and Methods: The current study was conducted on 12 patients with their age ranged from 16 to 45 years, with limited bone height below the floor of the maxillary sinus. they were divided into two groups. Group A patients received dental implants after sinus lifting using ballooning technique, while in group B patients received dental implants after transcrestal sinus lifting using Osteotomes. The bone density and bone height were measured by cone beam computed tomography (CBCT). Results: Successful sinus lifting with balloon technique and osteotome technique with superior clinical and radiographic results of balloon technique. The radiographic examination showed the mean elevated height after 6 months in group A was 11.72±2.16mm. While in group B was 8.05±1.90 mm. Conclusion: Balloon technique and osteotome technique are successful methods for sinus membrane lifting with superior clinical and radiographic results balloon technique.

Objectives:The objective of this study was to evaluate clinically and radiographically use of oxidized regenerated cellulose as a graft material in transalveolar sinus lifting and implant insertion. Subjects and methods: Eighteen implants were inserted in sixteen patients with missed upper molar teeth. They were divided into two groups: group A (study group) included patients who received dental implants after sinus lift with oxidized regenerated cellulose graft; group B (control group) included patients who received implants after sinus lift without graft. The patients were clinically and radiographically evaluated preoperatively and postoperatively immediate and 6 months post-surgery. Clinical evaluation included pain and discomfort, swelling and implant stability using osstell. Radiographical evaluation was done by CBCT to measure the bone height and density. Results: Both sinus lifted groups with or without graft have significant success rates with superior radiographic results of oxidized cellulose grafted group over non grafted one after a follow up period up to 6 months. Conclusion: Transealveolar sinus lifting with oxidized regenerated cellulose graft is a promising graft for sinus augmentation.