Oral biopsy is a surgical procedure that is based on obtaining an organic tissue from the mouth and its subsequent macro and microscopic study to make a definitive diagnosis of any oral pathology.

In addition to the diagnostic purpose, oral biopsy can have other objectives such as:

· Establish a definitive diagnosis of the lesion based on its histological appearance.

· Establish a prognosis for malignant and premalignant lesions.

· In some cases, facilitate the prescription of specific treatments.

· Contribute in the evaluation of the effectiveness of treatments.

· Constitute, in any case, a document with evident medical-legal value.