A cadaveric study of maxillary sinus size as an aid in bone grafting of the maxillary sinus floor.
OBJECTIVE
This study measured maxillary sinus volume as an aid in determining graft bone volume before grafting of the maxillary sinus floor.


METHODS
Maxillary sinus size was measured in 32 cadavers (59 sinuses) using casts of the maxillary sinus made using dental impression material.


RESULTS
Anteroposterior length, height, width, and volume of the maxillary sinus (mean+/-SD) were 30.1+/-5.65 mm, 34.6+/-7.71 mm, 25.4+/-5.71 mm, and 11.3+/-4.60 cm3, respectively. When the sinus-lift procedure was simulated, inferior sinus volumes (mean +/- SD) were 3.51+/-1.23 cm3 for a 15-mm lift and 5.66+/-1.71 cm3 for a 20-mm lift.


CONCLUSIONS
In bone grafting of the maxillary sinus floor, taking into consideration individual differences in maxillary sinus volume and resorption of the grafted bone, 4.74 cm3 or more of the graft is required for a 15-mm lift, and 7.37 cm3 or more is required for a 20-mm lift.
Department of Oral and Maxillofacial Surgery, Saga Medical School, Nabeshima, Japan.
Y
Y
Uchida
M
M
Goto
T
T
Katsuki
T
T
Akiyoshi
D000368:Aged; D000369:Aged, 80 and over; D016025:Bone Transplantation; D002102:Cadaver; D002508:Cephalometry; D005260:Female; D006801:Humans; D008297:Male; D008443:Maxillary Sinus / Q000033:anatomy & histology* / Q000601:surgery*; D008875:Middle Aged; D013516:Oral Surgical Procedures, Preprosthetic; D010347:Patient Care Planning; D012016:Reference Values; D015203:Reproducibility of Results