Oral Biopsy is a process by which a portion or the entire tissue is removed from the body. The removed tissue is then stained and examined under the microscope. Soft or hard tissue structures that are not within normal limits are required to be biopsied. Oral biopsy is necessary to properly diagnose the tissue structures, to rule out malignancy, to determine the severity of the conditions, and, in case of excisional biopsy, to remove the entire structure.