Effect of Chewing Gum Containing Phosphoryl Oligosaccharides of Calcium and Fluoride Extracted from Green Tea on Early Caries Lesions of Occlusal Surface in 1st Permanent Molars of 6～7-year-old Children

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  • DOI Takashi
    Department of Preventive and Community Dentistry, Osaka Dental University
  • MIYAKE Tatsuro
    Department of Preventive and Community Dentistry, Osaka Dental University
  • KAWASAKI Koji
    Department of Preventive and Community Dentistry, Osaka Dental University
  • JIN Koichiro
    Department of Preventive and Community Dentistry, Osaka Dental University
  • UENE Masako
    Department of Preventive and Community Dentistry, Osaka Dental University
  • KAMBARA Masaki
    Department of Preventive and Community Dentistry, Osaka Dental University

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Other Title
  • リン酸化オリゴ糖カルシウムと緑茶由来のフッ化物配合チューイングガムが6～7歳児の第一大臼歯咬合面の初期う蝕に及ぼす影響

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Abstract

 The purpose of this study was to evaluate the effects of chewing gum containing phosphoryl oligosaccharides of calcium (POs-Ca) and green tea extract fluoride on the activity of early caries lesions in 6〜7-year-old children. Subjects were 92 elementary school students. Chewing gum containing POs-Ca was given to 50 subjects (control group), and chewing gum containing POs-Ca and green tea extract fluoride was given to 42 subjects (F group). All subjects chewed two tablets of gum for 5 minutes once a day after lunch. Quantitative light-induced fluorescence (QLF) images of the occlusal surface of the 1st permanent molars were acquired using QLF equipment. QLF images were then examined to detect early caries lesions. The detected early caries lesions were analyzed in order to determine the volume of demineralization. The activity of early caries lesions was classified as progressing, arrested, or recovering based on changes in the results of QLF analysis over time. Chewing gum use was continued for one year, and examinations were repeated at 6-month intervals. QLF analysis of the activity of early caries showed that 32% of early caries lesions recovered in the control group, whereas 46% of lesions recovered in the F group (p<0.05). This suggests that chewing gum containing POs-Ca and green tea extract fluoride recovers early caries lesions on the occlusal surface of 1st molars in 6〜7-year-old children more effectively than chewing gum containing POs-Ca.

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