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Yeungnam Univ J Med > Volume 5(2); 1988 > Article
Yeungnam University Journal of Medicine 1988;5(2):71-77.
DOI:    Published online December 31, 1988.
The Effect of Mouth Breathing Due to Nasopharyngeal Obstruction by Adenoids on the Tongue, Mandible and Hyoid Bone Position.
Hee Kyoung Lee
This study was made to investigate the influence of mouth breathing to tongue, mandible and hyoid bone position. It has been clinically suggested that the mouth breathing is induced by the respiratory dysfunction of nasopharyngeal airway causing by the Adenoids. The author used the 50 children, who were the nasal breathes with normal occlusion as the control group, and 50 children, who were mouth breathers with Adenoid as the experimental group. Results were as following: 1. In experimental group, the tongue was positioned more anterior and lower than that of the normal children. 2. In experimental group, the mandible was positioned more lower than that of the normal children. 3. In experimental group, the hyoid bone was positioned more anterior and lower than that of the normal children.
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