Will using a pacifier stop teeth grinding during sleep?

Maybe. See below.: I assume you mean in children. The use of a pacifier to stop children from grinding is not what i would recommend. Grinding at night can result from stress. Take your child to a pedodontist for evaluation and treatment options.

Unlikely See dentist: Probably not. Nighttime grinding in children (or adults!) can be related to sleep disordered breathing. The child may not be getting enough oxygen during sleep, or may have actual episodes of apnea. Have a dentist check the size and shape of the jaws, tongue size and position and tonsils/adenoids. Does the child snore? You may need referral to a pediatric ENT for further evaluation.