Radiographic Evaluation of Bone Height Gain with Dental Implant Placed Simultaneously with Closed Sinus Lifting Using Hydraulic Lifting Technique Versus Summers' Osteotome Technique in Posterior Edentulous Maxilla (A Randomized Clinical Trial)

Document Type : Original Article


1 Oral Implantology Department, Faculty of Dentistry, Cairo university, Egypt

2 Oral and Maxillofacial Surgery Department, Faculty of Dentistry, Cairo University, Egypt


Aim: To evaluate the level of bone height gain radiographically after closed sinus lifting carried out simultaneously with implant placement using hydraulic lift technique versus Summers' osteotome technique.
Methodology: Twenty-two patients with edentulous posterior maxilla, seeking for fixed restoration, were enrolled in this study. The residual bone height ranged from 6 mm to 8mm. All patients were randomly divided into two groups according to technique used for closed sinus lifting. The control group utilized Summers` osteotome technique and the study group utilized Hydraulic lift technique. Bone height gain was measured using CBCT immediately and 6 months post-operatively for both groups. Patient satisfaction was assessed after surgery and at final restoration for both techniques by numerical scale through a patient satisfaction chart.
Results: All cases were carried out successfully with no reported complication. The immediate bone height gain in control group has been increased by a mean value of (3.6±0.6mm). While in the study group has been increased by a mean value of (6.00±0.7mm). Comparing the 2 groups, the study group achieved more bone height gain than control group in both immediate and 6 months postoperative results, which was statistically significant difference. Patient satisfaction was more in study group (92.6±1.8) than control group (85.9±3.8), and the difference was statistically significant.
Conclusions: The hydraulic lift technique used in closed sinus lifting is better than Summers` osteotome technique by means of more bone height gain achieved around dental implants initially and after 6 months follow up as well as with more patient satisfaction.