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SCOPUS 학술저널

구호흡환자의 비인두와 주위조직에 관한 두부방사선계측학적 연구

Cephalometric Study on the Naso-Pharyax and its Surrounding Structure :

By observing the lateral cephalometric radiograms of the Naso-pharynx of the mouth breatheres with adenoid hyperplasia, orthodontists could use the discriminant function as the supplementary diagnotic aid for the malocclusion cases with mouth breating. The purpose of this study was to ustilize the discriminant function as the indicator to remove the etiologic factor producing the relapse. The author used the 19 boys and 20 girls, who were the nasal-breathers with normal occlusion as the control group, and 16 boys 20 girls, who were the mouth breathers with adenoid hypaplasia and malocclusion. The age of the both groups was ranged from 12ys to 15ys. Results were as following ; 1. There was the difference in the bony structure of Naso-Pharynx between the mouth-breathers nasal-breathers. 2. IMRA of the mouth breathers was smaller than the nasal breathers. 3. The mouth-breathers had the skeletal open bite tendency. 4. Discriminant function; D<sub>i</sub>-9.85374 + ax<sub>2</sub> +bx<sub>4</sub> +cx<sub>6</sub> + dx<sub>7</sub> + ex<sub>8</sub> a=-0.1211273 b=-0.5908992 c==1.508446 d=-1.541869 e=-1.404478

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