익산시 청소년의 부정교합과 치아우식 유병률 사이의 연관성
Relationship between the Malocclusion and Caries Prevalence of Adolescents in Iksan
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본 연구는 제2대구치까지 구강 내에 맹출하여 비교적 안정된 교합을 이루기 시작한 영구치열기 청소년의 부정교합과 치아우식 유병률 사이의 연관성을 알아보고자 하였다. 전라북도 익산시 소재의 2개 중학교 학생 385명을 대상으로 시행한 구강검진을 통해 치아심미지수와 우식경험영구치지수를 조사하였다. 조사 대상 청소년의 치아심미지수는 평균 12.42점, 우식경험영구치지수는 평균 2.89개로 나타났다. 교정치료가 매우 필요하다고 판단되는 치아심미지수 36점 이상은 4명(1.03%)이었으며, 남학생이 여학생에 비해 상악 중절치의 정중이개와 하악 전치부 수평피개를 나타내는 비율이 유의하게 높았다(p < 0.05). 치아심미지수를 구성하는 10개 항목 중 7개 항목(결손치아 수, 전치부 악궁 총생도, 상악 전치부 최대 변위량, 하악 전치부 최대 변위량, 하악 전치부 수평피개량, 전치부 개방교합, 제1대구치의 전후방 관계)에서 각 항목의 정상 범주에 속하는 집단에 비해 정상 범주에서 벗어난 집단의 우식경험영구치지수가 유의하게 높았다(p < 0.05). 명백한 부정교합의 존재가 인정되는 치아심미지수 26점을 기준으로, 26점 미만에 비해 26점 이상인 집단의 우식경험영구치지수가 높았으며(p < 0.01), 치아심미지수와 우식경험영구치지수 사이에 유의한 선형 상관관계가 나타났다(r = 0.584, p< 0.01). 이상의 결과로부터 청소년의 부정교합과 치아우식증 유병률 사이에 유의한 양의 상관관계가 존재함을 알 수 있었으며, 치아우식증과 높은 상관성을 보이는 특정 형태의 부정교합을 확인할 수 있었다.
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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