Epithelial dysplasia in oral cavity

Among oral lesions, we encounter a series of malignant epithelial lesions that go through clinical and histopathologic processes in order to be diagnosed. Identifying these processes along with the etiology knowledge of these lesions is very important in prevention and early treatments. Dysplasia is the step preceding the formation of squamous cell carcinoma in lesions which have the potential to undergo dysplasia. Identification of etiological factors, clinical and histopathologic methods has been the topic of many articles. This article, reviews various articles presenting oral cavity dysplasia, new clinical methods of identifying lesions, and the immunohistochemical research which proposes various markers for providing more precise identification of such lesions. This article also briefly analyzes new treatment methods such as tissue engineering

Biopsy, how and why?

The term biopsy indicates the removal of tissue from a living body for diagnostic microscopic examinations. Biopsy is the most accurate and appropriate of all diagnostic histologic procedures. Without biopsy, accurate diagnosis of lesions is impossible. Biopsy procedures should be performed whenever a definitive diagnosis cannot be established by common clinical examinations. The purpose of taking a biopsy is to distinguish different lesions "with similar clinical or radiographic features or diagnosis of malignancies. This article presents different types of biopsies, indications, contraindications and common problems in biopsy procedures