Bruxism is clenching or grinding your teeth. Most people are not even aware that they are doing this. In the United States, bruxism affects about 30 million to 40 million children and adults.
Some people grind their teeth only during sleep. This is called “nocturnal bruxism” or “sleep-related bruxism.” Others grind or clench their teeth during the daytime as well. This is thought to be related to stress or anxiety. Stress can occur for many reasons, including sad and painful events such as the death of a loved one or the loss of a job. It can also occur from joyous events such as a new job or the birth of a baby.
Bruxism can have a variety of causes. Some experts view bruxism as nothing more than a habit. It also can be a result of the body’s reaction when the teeth do not line up or come together properly. Bruxism also can be a symptom of certain rare diseases of the nerves and muscles in the face. In rare cases, bruxism may be a side effect of some medicines that treat depression. These include Prozac (fluoxetine), Zoloft (sertraline) and Paxil (paroxetine).
People with severe bruxism can break dental fillings or damage their teeth. Rubbing the teeth together can cause the outer layers of enamel to wear away, exposing dentin. This can result in tooth sensitivity. Severe bruxism also has been blamed for:
- Some cases of jaw dysfunction, also called temporomandibular disorders (TMD)
- Headaches when you wake up in the morning
- Unexplained facial pain