Bruxism is a condition in which a patient grinds or clenches teeth, often at night during sleep. This destructive habit can cause tooth wear and breakage. Often, bruxism is caused by temporomandibular joint dysfunction (TMD) or stress. Dr. Sapienza offers bruxism therapy with comfortable oral appliances. At The Dental Spa of New York, We can custom make a nightguard to protect your teeth from nighttime grinding.