[Problems in the diagnosis of oral surgical diseases by means of histological studies]

On the basis of findings in 1,185 out-patients who had been to undergo biopsy, the author indicates the limitations of the treatment of tissue changes in stomatological practice. The comparison of the clinical diagnosis with the histological diagnosis demonstrated that there are various difficulties in evaluating oral surgical diseases associated with tissue changes. For this purpose, a specific scheme of differentiation was elaborated. Wrong diagnoses were most frequent in tumours (65.9%) and in affections of the oral mucosa (57.4%).