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Year : 2017  |  Volume : 8  |  Issue : 2  |  Page : 46-47

Potential causative role of involuntary mouth opening in temporomandibular disorders

1 Department of Physiology, Tokyo Dental College, Chiyoda-ku, Tokyo, Japan
2 Department of Epidemiology and Public Health, Tokyo Dental College, Chiyoda-ku, Tokyo, Japan

Correspondence Address:
Yuki Kojima
Department of Physiology, Tokyo Dental College, Chiyoda-ku, Tokyo
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/denthyp.denthyp_4_17

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Introduction: Bruxism has long been suspected as a cause of temporomandibular disorders (TMDs). However, the validity of conventional guidelines and treatment has been discussed since sometime. The association between bruxism and TMDs has recently been questioned, as self-assessments of bruxism are somewhat unreliable, and bruxism appears to have no adverse effects based on histological and physiological findings. The hypothesis: We hypothesize that involuntary mouth opening may play a role in the development of TMDs. Evaluation of the Hypothesis: Recently, some clinical and basic reports have indicated that involuntary mouth opening might be associated with TMDs.

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