Bruxism
Definition of Bruxism: when you clench your teeth (tightly hold your top and bottom teeth together) or grind your teeth (slide your teeth back and forth over each other).
Approximately 15 units of Botulinum Toxin A injections in each masseter muscle will relax the muscle and stop grinding and clenching in 4-14 days after treatment. The treatment can be repeated 4-6 monthly.