Peñarrocha-Diago, María Osteotomy in direct sinus lift. A comparative study of the rotary technique and ultrasound. [electronic resource] - Medicina oral, patologia oral y cirugia bucal May 2012 - e457-61 p. digital Publication Type: Comparative Study; Journal Article ISSN: 1698-6946 Standard No.: 10.4317/medoral.17599 doi Subjects--Topical Terms: AdultAgedFemaleHumansMaleMiddle AgedOsteotomyRetrospective StudiesSinus Floor Augmentation--instrumentation