1) FDI. Global goals for oral health in the year 2000. Int. Dent. J.. (1985) vol.32, p.21-28.
2) 厚生省健康政策局歯科衛生課. 昭和62年歯科疾患実態調査報告. 口腔保健協会. (1989)
3) World Health Organization. Dental caries levels at 12 years. WHO. (1992)
4) WILSON R. F. Identification of caries risk in schoolchildren : salivary buffering capacity and bacterial counts, sugar intake and caries experience as predictors of 2-year and 3-year caries increment. Br. Dent. J.. (1989) vol.166, p.99-102.
5) ALALUUSUA S. Salivary counts of mutans streptococci and lactobacilli and past caries experience in caries prediction. Caries Res.. (1993) vol.27, p.68-71.