How To Drain a Tooth Abscess 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 Intraoral incision and drainage of an uncomplicated tooth abscess is done to provide analgesia and limit further and deeper spread of the infection.