Efficacy of Alveolar Ridge Preservation after Maxillary Molar Extraction in Reducing Crestal Bone Resorption and Sinus Pneumatization: A Multicenter Prospective Case-Control Study

Table 2

Entity of sinus pneumatization six months after dental extraction.

	Control	Test	Difference	Diff.
	(mm)	(mm)	(mm)
PNm	0.82 ± 0.38	0.59 ± 0.43	0.23	0.15; NS
PNd	0.79 ± 0.71	0.55 ± 0.51	0.24	0.33; NS
PNp	1.08 ± 1.03	0.72 ± 0.70	0.36	0.3; NS
PN	1.46 ± 0.93	0.92 ± 0.63	0.54	0.1; NS
Total	1.04±0.67	0.69±0.48	0.35	0.15; NS

Measures are presented as mean±standard deviation. PNm, PNd, PNp, PN, sinus expansion between T0 and T1 measured following the axis of the mesial (PNm), distal (PNd), palatal (PNp) roots and in the center of the crest (PN). Diff. significance of the difference between the groups. NS, no significant difference.