How To Do a Mental Nerve Block By Peter J Heath, DDS, MD, American Board of Oral and Maxillofacial Surgery Reviewed / Revised Jul 2022 | Modified Sep 2022 View Patient Education Indications Contraindications Complications Equipment Additional Considerations Relevant Anatomy Positioning Step-by-Step Description of Procedure Aftercare Warnings and Common Errors Tricks and Tips Topic Resources How To Do a Mental Nerve Block A nerve block of the mental nerve anesthetizes the ipsilateral lower lip and skin of the chin, as well as the lateral (buccal) gingiva and mucosa anterior to the mental foramen up to the midline.