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Relationship between the Malocclusion and Caries Prevalence of Adolescents in Iksan

신가영 1 Ra Jiyoung 2 An So-youn 2 Jihyun Song 2 Kwang-Hee Lee 2

1원광대학교 치과대학 소아치과학교실
2원광대학교

Accredited

ABSTRACT

The purpose of the present study was to evaluate the relationship between the malocclusion and dental cariesin adolescents with permanent dentition. The subjects of the study were 385 adolescents aged 12 to 15 years. Dental Aesthetic Index (DAI) and DMFT index were recorded as clinical indicators of malocclusion and dentalcaries. The mean Dental Aesthetic Index (DAI) score of the subjects was 12.42 and the mean DMFT index of thesubjects was 2.89. Four students (1.04%) were included in the group of orthodontic treatment mandatory,which signifies the handicapping malocclusion. Moreover, the result of gender-specific analysis of the DAI componentsobserved that the prevalence of midline diastema and mandibular overjet were significantly higheramong boys (p < 0.05). In 7 components (missing teeth, incisal segment crowding, maxillary anterior irregularity, mandibular anteriorirregularity, mandibular overjet, anterior openbite, antero-posterior molar relationship) among the 10 DAI components,abnormal groups showed significantly higher DMFT index than normal groups (p < 0.05). The subjects in the group of definite to handicapping malocclusion (DAI ≥ 26) showed significantly higherDMFT index than the subjects in the group of minor or no malocclusion (p < 0.01). In addition, the DAI scorehad significant positive linear correlation with the DMFT index (r = 0.584, p < 0.01). Consequently, the current findings suggested a positive relationship between the malocclusion and cariesprevalence. And several specific types of malocclusion were supposed to be significantly correlated with dentalcaries.

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