21. The ICSD-R states that sleep bruxism may occur in over 50 % of normal infants. 22. The etiology of dental attrition is multifactorial one of the most common causes of attrition is bruxism . 23. Bruxism is the para-functional movement of the mandible, occurring during the day or night.24. Bruxism is a common problem; reports of prevalence range from 8 31 % in the general population.25. In severe, chronic cases, bruxism can lead to myofascial pain and arthritis of the temporomandibular joints. 26. The cause of bruxism is largely unknown, but it is generally accepted to have multiple possible causes. 27. Bruxism can also be exacerbated by excessive consumption of caffeine, as in coffee, tea or chocolate.28. The relationship of bruxism with temporomandibular joint dysfunction ( TMD, or temporomandibular pain dysfunction syndrome ) is debated. 29. These are mostly of relevance to research, and are rarely used in the routine clinical diagnosis of bruxism . 30. Sleep bruxism is purported to lead to a hyperactivity of the trigeminal nerve, often triggering typical migraine events.
