[OraTest. A new method for differentiating between benign and malignant oral tumors]

This article introduces a new, simple and quick method with which the final treatment of the patients with oral risk factors and precancerous lesions can be decided. It is a rinsing method with an 0.1% toluidine blue O dye. After a pre- and postrinse with acetic acid and toluidin blue dye application the oral mucous membrane areas retaining the dye will indicate the possible malignant lesions even in those areas where just histologically detectable dysplasia is present. On the basis of the literature and on our practice we can advice to use OraTest to examine patients in the risk factor group, the patients with suspected disease and patients with speckled, exulcerant and erythroleukoplakia.