Table 2.

Percentage of affected tooth surfaces, severity, and area of the surfaces affected by dental erosion according to the number of teeth/surfaces

	No. of teeth/surfaces	Percentage (%)
Affected surface
Labial or buccal only	146	7.7
Lingual or palatal only	72	3.8
Incisal or occlusal only	818	43.2
Labial and incisal/occlusal	430	22.7
Lingual and incisal/occlusal	58	3.0
Multi-surface	371	19.6
Total (teeth)	1895	100.0
Severity
Matt appearance of the enamel	1447	44.0
Loss of enamel only	1795	54.6
Loss of enamel with exposure of dentin (enamel-dentin junction visible)	46	1.4
Total (surfaces)	3288	100.0
Area affected
Less than half of surface affected	1008	30.7
More than half of surface affected	2280	69.3
Total (surfaces)	3288	100.0