CARIES PATTERNS IN PRIMARY DENTITION BY CARIES EXPERIENCE OF INDIVIDUAL TEETH

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Journal of the Korean Academy of Pediatric Dentistry 1999;26(1):1-13.
Published online February 28, 1999.

CARIES PATTERNS IN PRIMARY DENTITION BY CARIES EXPERIENCE OF INDIVIDUAL TEETH

치아별 우식경험도로 본 유치열의 우식패턴에 관한 연구

이종선, 이광희, 김대업

원광대학교 치과대학 소아치과학교실

Abstract

To study the caries patterns in primary dentition, 719 preschool children, 4-6 years old, were examined for their caries activity(salivary reductase activity) and caries experience of individual teeth. Teeth groups were made by cluster analysis using dft indexes of individual teeth as criteria. The six major teeth groups in the order of dft index from high to low were (1) lower primary molars, (2) upper primary molars, (3) upper central incisor, (4) upper lateral incisor, (5) canines, and (6) lower incisors. There were significant differences in dft index between teeth groups except upper lateral incisor and canines. Upper and lower primary molars showed the highest correlation in dft index, and the next couples were upper central incisors and upper lateral incisors, upper lateral incisor and canines, upper central incisor and canines, upper lateral incisor and upper primary molars, and canines and upper primary molars in descending order. Upper first primary molar showed the greatest differences in dft index between caries activity levels.

Key Words: caries activity, caries pattern, dft index, primary dentition