CBCT
CBCT slice 1 or 2 mm bone below the sinus
View of the region
Full thickness flap
sluice preparation B.Y.S.1
Osteotomy by B.Y.1
The B.Y.2 fractured the sinus floor
The membrane elevation by osteotomes 3mm, 4mm,5mm,6mm , 7mm, mm by mm
bleeding after membrane elevation
Bone graft at the entrance of the sluice and filling by 6,5,4,3,2 osteotomes.
Sluice closing
Final result .
4 months post op radiography result
