Table 3.

Pearson's correlation test of sinus width, sinus angle and graft bone resorption based on the classification of implant system.

Anatomical factor	Implant system	GR
		n	r	P value
SW	Bicon	32	0.500	0.004∗∗
	ITI	31	0.432	0.014∗
SA	Bicon	32	0.423	0.018∗
	ITI	31	0.386	0.032∗

SW = sinus width; SA = sinus angle; GR = graft bone resorption.

∗∗Correlation is significant at level 0.01 (two-tailed).

∗Correlation is significant at level 0.05 (two-tailed).