Technique used for subtotal maxillectomy or total maxillectomy with orbital preservation. First, incision is made running from the ipsilateral nasal vestibule laterally to the base of the nasal columella and transversely to the midline of the upper lip, splitting the upper lip in a zigzag pattern. Then a horizontal gingival buccal incision is made (both infra-and supraorbital incision extensions can be made). The facial flap is retracted laterallyt in the subperiosteal plane with preservation of the infraorbital nerve.