TABLE 1. Number of volunteers that presented Enterobacteriaceae, Pseudomonadaceae and Moraxellaceae on the tongue dorsum according to the age group.

Age group	Positive Cases		Negative Cases		Total
	n	%	n	%	N
30-39	16	37.2	40	70.17	56
40-50	27	62.8	17	29.83	44

Fisher's exact test (p=0.001).