Table 3.

Occurrence of pre-eruptive intra-coronal lesions in different tooth surfaces.

	Affected tooth surface
	MA	MO	CO	DO	DA
Gender
Female	1	8	12	2	3
Male	1	7	17	2	2
Total	2	15	29	4	5

Abbreviations: MA, mesio-approximal; MO, mesio-occlusal; CO, centro-occlusal; DO, disto-occlusal; DA, disto-approximal.