TABLE 2.

Tissue distribution of the markers studied

Marker	Detection in:
	Junctional epithelium	ICT	Sulcular epithelium	Orogingival epithelium
DNA breaks	+++	++	+	+
Bcl-2 expression	−	++	+/− (basal cells)	+/− (basal cells)
p53 expression	+++	+	+/− (suprabasal)	+/− (suprabasal)
Ki67 expression	++ (basal cells)	−	++ (basal cells)	++ (basal cells)