目的了解南海市南庄镇和小塘镇人群氟牙症流行状况，作为制订防龋计划的依据和防龋项目评价的基线资料。
Objective To provide the basis for caries prevention program and offer relevant evaluation criterion , dental fluorosis epidemiology study was made in Nanzhuang and Xiaotang , Nanhai City .
小塘镇