Introduction: Several methods have developed and are currently used for sinus
lifting and augmentation. Aim: this study aimed to make a comparison between
piezoelectric ultrasound surgery and conventional technique in sinus lifting procedure
with simultaneous implant insertion. Materials and Methods: This case series consisted
of twenty-four sinus elevations using the buccal lateral approach technique, the patients
had defective upper posterior teeth for a long time with pneumatization of the sinus,
they had bone height 5-7 mm which was insufficient for routine implant placement.
Result: The results were evaluated by one-way analysis of variance. P values of less
than 0.05 were considered to indicate a significant difference, bone density and implant
stability are measure with CT for 6 months. Conclusion: While implant survival and
bone gained are better with the ultrasound technique, perforations of the maxillary sinus
membrane are more frequent in direct sinus lifts performed with the rotary technique
(7%) than with ultrasound (1.7%).