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目的了解和掌握满洲里市饮水型氟中毒监测村8~12岁儿童氟斑牙患病情况及改水工程运转情况,为防治地方性氟中毒提供科学依据。方法选择满洲里市3个饮水型氟中毒监测村调查8~12岁在校儿童氟斑牙患病情况并对当地饮用水进行水氟含量检测。结果 2013-2014年满洲里市饮水型氟中毒监测村8~12岁儿童氟斑牙总检出率(分别为29.35%与27.24%)与1997年(44.73%)间差异有统计学意义(χ~2=66.68,P<0.05);2013-2014年满洲里市饮水型氟中毒已改水监测村饮用水氟含量[分别为(0.44±0.028)mg/L与(0.42±0.058)mg/L]与1997年[(2.05±0.192)mg/L]比较差异亦有统计学意义(F=475.503,P<0.05)。结论满洲里市改水工程对饮水型氟中毒的防治起到了一定作用,但儿童氟斑牙检出率仍然较高,地方性氟中毒防治工作仍较艰巨。
Objective To understand and grasp the prevalence of dental fluorosis and the operation of water diversion project in children aged 8 ~ 12 in the drinking water fluorosis monitoring village in Manzhouli City, and provide a scientific basis for prevention and treatment of endemic fluorosis. Methods Three drinking water fluorosis monitoring villages in Manzhouli City were surveyed to investigate the prevalence of dental fluorosis in children aged 8 to 12 years old and the fluoride content in drinking water was measured. Results The total detection rates of dental fluorosis (29.35% and 27.24%, respectively) in children aged 8 ~ 12 years and those in 1997 (44.73%) in 2013-2014 drinking water fluorosis monitoring community were significantly different (χ ~ (0.44 ± 0.028) mg / L and (0.42 ± 0.058) mg / L, respectively, in drinking water fluorosis in Manzhouli City during 2013-2014 The difference was statistically significant in 1997 [(2.05 ± 0.192) mg / L] (F = 475.503, P <0.05). Conclusion The water diversion project in Manchuria has played a certain role in the prevention and treatment of drinking-water fluorosis. However, the detection rate of dental fluorosis in children is still high, and endemic fluorosis prevention and control work is still arduous.