Can i use tranquilizers for teeth grinding?

Yes, but: Teeth grinding, or bruxism is usually a chronic problem. Sometimes it's precipitated by certain drugs. Best to see a TMJ specialist to evaluate the condition. Tranquilizers may help, but you may trade one problem - grinding, or another - addiction to the drug. A dentist can make a night guard which will help with the grinding.

Yes, clonazepam: However, you must be screened for other comorbid medical conditions before being considered for pharmacotherapy. Underlying disorders and medications (e.g SSRI) may interfere with motor activities during sleep and must be assessed before other treatments are recommended. See a a sleep specialist.