Table 3:

Occurrence of dental erosion according to the body mass index classification

Body mass index	Dental erosion						P value a
	Yes		No		Total
	n	(%)	n	(%)	n	(%)
Underweight (< 18.5)	28	(27.5)	9	(18.7)	37	(24.7)	0.468
Normal weight (18.5–24.9)	63	(61.8)	32	(66.7)	95	(63.3)
Overweight or obese (25.0–34.9)	11	(10.7)	7	(14.6)	18	(12.0)

^a P values were based on chi-square test.