미취학 아동의 칫솔질 교육에 따른 치아우식원인균 감소와 구강위생상태 변화 (Reduction of causative organisms associated with dental caries and alteration of oral hygiene status in connection with toothbrushing instruction for preschool children)
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- 한국치위생학회지
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- 제18권5호
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- pp.831-842
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- 2018