Objects To investigate the relationship between dentition development and general growth and the effect of calcium on dentition growth and general growth by survey on pupils of 10 12 years old.
目的调查10 ~12岁小学生牙列发育和一般生长发育状况，探讨两者的联系以及钙制剂对牙列发育和生长发育的影响。
Objects To investigate the relationship between dentition development and general growth and the effect of calcium on dentition growth and general growth by survey on pupils of 10 12 years old.
目的调查10 ~12岁小学生牙列发育和一般生长发育状况，探讨两者的联系以及钙制剂对牙列发育和生长发育的影响。
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