Table 2.

Sex-related distances between the root apex and the maxillary sinus floor on the right side.

Tooth	Sex	N	Sagittal				Coronal
			Mean ± SD	Min	Max	P value	Mean ± SD	Min	Max	P value
16 and 26
MB	M	71	2.16 ± 3.39	−1.26	12.01	0.40	2.98 ± 4.27	−1.46	13.25	0.22
	F	87	1.73 ± 2.99	−4.08	13.43		2.19 ± 3.54	−2.77	11.54
DB	M	71	2.27 ± 3.40	−1.20	13.53	0.34	2.75 ± 4.00	−1.65	13.49	0.61
	F	87	1.79 ± 2.84	−2.75	12.10		2.44 ± 3.48	−4.12	18.11
P	M	71	2.20 ± 3.98	−4.07	14.81	0.99	2.27 ± 3.63	−4.03	10.94	0.55
	F	87	2.20 ± 3.23	−3.02	11.48		2.61 ± 3.62	−2.44	12.30
17 and 27
MB	M	71	1.22 ± 2.90	−3.29	8.37	0.50	1.37 ± 2.94	−2.33	9.56	0.49
	F	89	0.94 ± 2.17	−2.76	8.77		1.08 ± 2.22	−2.46	8.62
DB	M	71	1.92 ± 3.27	−2.37	8.37	0.22	2.10 ± 3.18	−1.41	9.56	0.26
	F	89	1.34 ± 2.49	−2.03	10.72		1.57 ± 2.58	−1.59	10.01
P	M	71	3.08 ± 3.81	−1.69	11.88	0.40	3.12 ± 3.68	−1.10	11.73	0.80
	F	89	2.60 ± 3.11	−2.55	12.24		2.98 ± 3.20	−2.65	11.57

Distances are shown in mm.

Abbreviations: MB, mesiobuccal root; DB, distobuccal root; P, palatal root; N, number; M, male; F, female; SD, standard deviation; Min, minimum; Max, maximum.