혼합치열기 아동에서 유구치 크라운 보유 여부와 전치부 형광 치태지수의 관련성: 정량광형광분석(QLF) 기술의 적용
Association of primary molar crowns with anterior fluorescent plaque index in children with mixed dentition : a quantitative light-induced fluorescence (QLF) study
Purpose: This study examined the independent association between history of primary molar crown treatment and oral hygiene status of anterior teeth in children with mixed dentition using quantitative light-induced fluorescence (QLF). Methods: This retrospective cross-sectional study was conducted among 60 children aged 9 and 10 years (n=30 in each group). Qraycam Pro (AIOBIO) was used to collect fluorescent plaque index scores for the anterior teeth. Due to non-normal data distribution, the Mann– Whitney U test and rank-transformed two-way analysis of variance were used to compare plaque indices according to the presence of primary molar crowns (n=25) and age. To determine independent association, multiple linear regression analysis was performed after adjusting for sex, age, dental visit frequency, and baseline caries experience (decayed and filled teeth index). Results: Median fluorescent plaque index of the anterior teeth in the group with primary molars (2.80) was significantly higher than that in the control group (1.80) (Z=–3.842, p<0.001). No significant differences or interaction effects were observed between the groups with children aged 9 and 10 years (p>0.05). Regression analysis revealed that the presence of primary crowns was independently associated with increased plaque accumulation on anterior teeth (β=0.42, p<0.001). Conclusion: History of primary molar prosthetic treatment serves as a critical clinical risk marker for poorer oral hygiene status in the anterior region. Clinical protocols should incorporate periodic full-mouth QLF screening of standardized anterior teeth following posterior treatment, providing tailored oral hygiene interventions based on visual feedback.
목차
Abstract INTRODUCTION MATERIALS AND METHODS 1. 연구 대상 및 자료 수집 2. 유치 크라운 보유 여부 및 임상 지표 조사 3. Qraycam Pro를 이용한 정량형광 치태지수 산출 4. 통계 분석 RESULTS 1. 연구 대상자의 일반 및 임상적 특성 2. 연령 및 유치 크라운 보유 여부에 따른 형광 치태지수 비교 3. 형광 치태지수에 영향을 미치는 관련 요인 분석 DISCUSSION CONCLUSIONS FUNDING ACKNOWLEDGEMENTS CONFLICT OF INTEREST ORCID REFERENCES