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KMID : 0358920010280040593
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Journal of the Korean Academy of Pedodontics
2001 Volume.28 No. 4 p.593 ~ p.599
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A STUDY OF THE MAXIMUM MOUTH OPENING IN CHILDREN
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Baik Byeong-Ju
Yang Yeon-Mi
Kim Jae-Gon
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Abstract
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Recently, tempormandibular disorder(TMD) shows an tendency to increase every year. TMD is a collective term embracing a number of clinical problems that involve the masticatory musculature, temporomandibular joint(TMJ) and associated structures, or both. TMD, viewed in distribution of age, often occurred from late teens to late twenties. But recently, the age of occurrence tends to be lower. Accordingly, early diagnosis of tempormandibular disorder is very important. In this study, we measured the maximum mouth opening which is simple and easy to carry out as a way of TMD diagnosis. In this study, the maximum mouth opening was examined for 1,775 children from 4 to 12 years of age. We compared the relationship between the maximum mouth opening with the age, height, and weight. The results obtained were summarized as follows; 1. The mean maximum mouth openings of 4, 8, and 12 year of age were respectively 40.16mm, 47.32mm, 50.54mm for male, 39.79mm, 44.85mm, 48.09mm for female. 2. The maximum mouth opening increased with age, and the values were greater in male than in female. 3. The maximum mouth opening increased with height, and the values were eater in male than in female except between 105cm and 115cm 4. The maximum mouth opening increased with weight, and the values were eater in male than in female. 5. The correlation between the maximum mouth opening with the age, height, and weight was all significant, and height showed the highest correlation.
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KEYWORD
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Maximum mouth opening, Height, Weight, Temporomandibular disorder
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