an increasing trendP < 0.001
Within the age range of 3–7 years, both the prevalence and the mean dmft score of dental caries in deciduous teeth showed an increasing trend with age (the mean dmft score rs = 0.250, P < 0.001).
Within the age range of 3–7 years, both the prevalence and the mean dmft score of dental caries in deciduous teeth showed an increasing trend with age (the mean dmft score rs = 0.250, P < 0.001).