Comparative study of two autogenous graft techniques using piezosurgery for sinus lifting.
OBJECTIVE
Maxillary sinus lifting is a technique, in which, a possible complication is sinus membrane perforation. The aim of this study was to compare two techniques using ultrasound surgery to perform autogenous graft for maxillary sinus lifting.


METHODS
Ten rabbits were used in the study, one of them did not undergo surgery. The other nine rabbits had their maxillary sinuses filled with autogenous bone grafts collected from the external skull diploe in particulate form on the right side, and shaved on the left side, both with ultrasonic device. Data on bone density in left and right maxillary sinus, obtained by computed tomography in transverse and longitudinal sections, recorded 90 days after the grafts, were statistically compared.


RESULTS
There were no statistically significant differences between the two techniques that used shaved and particulate bone collected by means of ultrasonic device from rabbit skulls.


CONCLUSIONS
Assessment of operative procedures led to the conclusion that piezoelectric ultrasound was shown to be a safe tool in the surgical approach to the maxillary sinus of rabbits, allowing sinus membrane integrity to be maintained during surgical procedures.
Department of Surgery, USP, Sao Paulo, SP, Brazil.
Geraldo Prestes de
GP
Camargo Filho
Luciana
L
Corrêa
Claudio
C
Costa
Claudio Mendes
CM
Pannuti
Rainer
R
Schmelzeisen
João Gualberto de Cerqueira
JG
Luz
D000818:Animals; D016025:Bone Transplantation / Q000379:methods*; D008297:Male; D008443:Maxillary Sinus / Q000601:surgery*; D023421:Models, Animal; D009092:Mucous Membrane / Q000601:surgery; D010027:Osteotomy / Q000009:adverse effects; D011817:Rabbits; D014182:Transplantation, Autologous; D014464:Ultrasonic Therapy / Q000379:methods*