The main purpose of night guards for teeth grinding is to put something between the upper and lower teeth. Prevent teeth grinding by using night guards with tips from adentist in this free oral hygiene video. Expert: Dr. Joe Neely Bio: Dr. Joe Neely practices dentistry with Barton Oaks Dental Group. With over 35 years of experience, Dr. Neely loves helping people get the smile they want. Filmmaker: MAKE | MEDIA

