The factors that influence postoperative stability of the dental implants in posterior edentulous maxilla

Maxillofacial Plastic and Reconstructive Surgery

Table 4 Postoperative ISQ value based on whether bone graft was accompanied, by graft material, whether sinus lift was accompanied, between approach techniques. T test & ANOVA were performed using Microsoft Excel 2010®

		n	ISQ
Whether bone graft performed (P = 0.42)	With bone graft	354	79.08 ± 7.37
Whether bone graft performed (P = 0.42)	Without bone graft	125	79.68 ± 6.57
By graft material (P = 0.52)	Autogenous	144	79.37 ± 7.19
	Xenograft	177	78.73 ± 7.28
	Mixture (autogenous + xenograft)	30	80.20 ± 8.51
Whether sinus lift performed (P = 0.14)	With sinus lift	301	78.87 ± 7.55
Whether sinus lift performed (P = 0.14)	Without sinus lift	174	79.84 ± 6.46
By approach technique of sinus lift (P = 0.16)	Lateral approach	263	78.70 ± 7.86
By approach technique of sinus lift (P = 0.16)	Crestal approach	24	80.13 ± 4.26