Prevalence and pattern of torus palatinus and torus mandibularis among edentulous patients of Saudi Arabia

Figures & data

Table 1 Prevalence of tori in the study population according to location

Location	Male (n=458)	%	Female (n=389)	%	Total (n=847)	%
Torus palatinus	39	8.52	27	6.94	66	7.79
Torus mandibularis	48	10.48	35	9.00	83	9.80
Total	87	19.00	62	15.94	149	17.59
χ^2=0.0243, P=0.8773

Table 2 Distribution of torus palatinus and torus mandibularis according to age and sex

Age-groups (years)	Torus palatinus			Torus mandibularis
	Male n (%)	Female n (%)	Total n (%)	Male n (%)	Female n (%)	Total n (%)
50–59	5 (12.82)	7 (25.93)	12 (18.18)	11 (22.92)	13 (37.14)	24 (28.92)
60–69	15 (38.46)	9 (33.33)	24 (36.36)	13 (27.08)	7 (20.00)	20 (24.10)
70–79	11 (28.21)	6 (22.22)	17 (25.76)	14 (29.17)	9 (25.71)	23 (27.71)
80–89	8 (20.51)	5 (18.52)	13 (19.70)	10 (20.83)	6 (17.14)	16 (19.28)
Total	39 (100.00)	27 (100.00)	66 (100.00)	48 (100.00)	35 (100.00)	83 (100.00)
χ^2=1.8762, P=0.5984				χ^2=2.0628, P=0.5584
Mean	71.14	68.83	70.20	70.29	67.79	69.23
SD	9.55	10.54	10.03	10.64	11.28	10.99

Abbreviation: SD, standard deviation.

Table 3 Distribution of torus palatinus according to shape

Shape	Male	%	Female	%	Total	%
Flat	22	56.41	16	59.26	38	57.58
Spindle	8	20.51	7	25.93	15	22.73
Nodular	6	15.38	3	11.11	9	13.64
Lobular	3	7.69	1	3.70	4	6.06
Total	39	100.00	27	100.00	66	100.00
χ^2=0.8631, P=0.8354

Table 4 Distribution of torus mandibularis according to shape

Shape	Male	%	Female	%	Total	%
Unilateral solitary	14	29.17	9	25.71	23	27.71
Bilateral solitary	18	37.50	15	42.86	33	39.76
Unilateral multiple	8	16.67	6	17.14	14	16.87
Bilateral multiple	5	10.42	4	11.43	9	10.84
Bilateral combined	3	6.25	1	2.86	4	4.82
Total	48	100.00	35	100.00	83	100.00
χ^2=0.7386, P=0.9475