[A morphometric study of 74 cases of oral lichen planus].

We have carried out a morphometric study of the lesions of 74 patients with oral lichen planus. We have found as important data that the parameters differentiating the reticulated clinical lesions from the atrophic or erosive lesions are the epithelial thickness and the length of the dermic papillae. On the other hand, we have seen no difference between both types of lesions as regards the quantity of infiltrate in the connective tissue.