Table 1.

Intra-oral distribution of dental erosion according to tooth group and dental surface

	Erosion	Maxillary			Mandibular
		Central incisors	Lateral incisors	First molars	Central incisors	Lateral incisors	First molars
Buccal	No	2,788 (91.3)	3,009 (99.2)	2,993 (100)	2,982 (97.7)	2,982 (97.9)	2,941 (99.4)
	Mild	258 (8.5)	22 (0.7)	0	68 (2.2)	63 (2.1)	19 (0.6)
	Severe	6 (0.2)	3 (0.1)	0	4 (0.1)	2 (0.1)	0
Palatal/Lingual	No	2,840 (93)	2,906 (95.8)	2,989 (99.7)	3,046 (99.7)	3,038 (99.7)	2,960 (100)
	Mild	204 (6.7)	122 (4)	7 (0.2)	8 (0.3)	9 (0.3)	0
	Severe	10 (0.3)	6 (0.2)	2 (0.1)	0	0	0
Occlusal	No	–	–	2,955 (98.4)	–	–	2,860 (96.6)
	Mild	–	–	44 (1.5)	–	–	72 (2.4)
	Severe	–	–	4 (0.1)	–	–	29 (1)

Values are given as n (%).