Bruxism is the habit of clenching and grinding your teeth. Bruxism can occur during sleep and during periods of stress and tension. It is not part of the normal daily functions of the jaw and in most cases people are not aware that it is happening. Bruxism has been associated with neurological diseases that cause involuntary movements. Stress, medications and most recently obstructive sleep apnea has also been associated with bruxism.
Bruxism can produce significant wear over time which can create teeth fractures, soreness in the chewing muscles, sensitive teeth, face pain and wear of tooth enamel.
Bruxism is a repetitive muscle activity. Bruxism is characterized by clenching or grinding of the teeth. There is an emerging consensus that bruxism is regulated in the brain, whereas it was previously though that dental occlusion and articulation could be the cause.
Awake and sleep bruxism are generally considered different conditions. Sleep bruxism is a movement of the muscles of chewing during sleep, and awake bruxism is a movement of the muscles of chewing while awake. During bruxism there is sustained tooth contact, and the jaw often makes forceful movements, up to 250 pounds in force.
Bruxism is not considered a disorder in healthy individuals but may be a risk factor for severe muscle pain, tooth wear, temporomandibular joint pain and can also damage or fracture dental crowns.
Your dentist will complete a comprehensive evaluation of the face, head and neck and the upper airway.
Your dentist may recommend an oral appliance, as well as practical advice to reduce bruxism.
Your dentist will evaluate your symptoms and will look for signs of bruxism such as tooth wear.
Presence of pain jaw muscles, joint pain, headaches, hypertrophy of the masseter muscle, indentations in tongue or lip could be a sign of bruxism. Oral clinical examination is essential for the evaluation of bruxism. In some instances, a polysomnography test is ordered to identify if there is an underlying obstructive sleep apnea in an individual with several sleep complaints.
Yes. Studies suggest that sleep bruxism can be found anywhere between 6% to to 50% of children, and in adolescents is estimated to be around 15%. Some people are not aware of the habit but parents may notice the grinding sounds while they sleep.
Causes of bruxism may be related to multiple factors. Recently, researchers are looking at episodes of teeth grinding since these episodes appear to be connected to changing sleep patterns and microarousals from sleep. In some cases teeth grinding is preceded by increases in brain and cardiovascular activity, this may explain some of the associations between obstructive sleep apnea and bruxism.
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