Objective To study the expressions of MMP-14( matrix metalloproteinase-14),Vimentin and E-cadherin in oral squamous cell carecinoma( OSCC) and to investigate the relationship between MMP-14,Vimentin and E-cadherin expression and pathologic diagnosis,clinicopathogical features and prognosis. Methods The expression levels of MMP-14,Vimentin and E-cadherin were tested by immunohistochemical in 83 cases of OSCC and 20 in adjacent normal tissues,and statistical analysis was conducted according to the clinical pa...