Table 2.

The position relationships between the implant and the maxillary sinus cavity.

Type	Sides/percentage	The length of the implant embedded inside the bone body completely (mean ± SD) (mm)	The length of the implant partly inside the sinus cavity (mean ± SD) (mm)	The length of the implant completely inside the sinus cavity (mean ± SD) (mm)
I	77/80.20%	26.10 ± 8.80 (AB + EF)	8.11 ± 5.85 (BC + DE)	24.17 ± 11.06 (CD)
II	15/15.63%	42.47 ± 14.31 (AB + EF)	15.55 ± 7.62 (BE)	/
III	4/4.17%	54.16 ± 4.53 (AF)	/	/