구강 기능의 연령별 발달 수준

Developmental Levels of Oral Function in Normal Children

This study was conducted to provide information for evaluating oral function in infants. It was carried out in Seoul, Korea, from June to Aug. 1992. with a sample of 100 normal children ranging from 1 co 5 years of age. Oral function was measured with Straton's 'Evaluation of Oral Function in Feeding'. The average age at which each oral function developed is listed below : lip closure over spoon- I year ; jaw opening, jaw closure, lip closure while swallowing, sips liquids, and swallows liquids without excess loss - 2 years ; chews food, swallows food without excess loss, and swallows food without coughing-3 years ; and tongue control-4 years. From the above results, it may be concluded that tongue control develops after jaw control and lip closure.