Table 2.

Correlation of matrix metalloproteinase-9 expression scores with site

Pairwise comparisons by Mann-Whitney U-test
	P	P	P
BM versus GBS	0.572	0.149	0.164
BM versus tongue	0.370	0.016*	0.055
GBS versus tongue	0.787	0.587	0.829
BM versus FOM	0.391	0.058	0.026*
BM versus RMT	00.811	0.568	0.830

*P<0.05. BM: Buccal mucosa, GBS: Gingivobuccal sulcus, FOM: Floor of mouth, RMT: Retromolar trigone