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目的了解广西柳州市学龄前儿童牙面色斑发生的规律,探讨其发生的原因及相关影响因素。方法随机抽出广西柳州市13所幼儿园,对在园的学龄前儿童进行牙面色斑沉着、患龋情况、口腔卫生情况等口腔健康状况调查,对所得数据进行统计分析。结果牙面色斑在患龋儿童中的发生率7.54%,低于无龋儿童15.34%;牙面色斑的发生率在氟化泡沫组18.13%,高于氟保护漆组11.65%和未使用氟化物的对照组10.32%;牙面色斑的发生与软垢指数间的相关性不具有统计学意义。结论牙面色斑的发生可能是口腔微生物环境改变的结果,与使用不同剂型的氟化物有关,不能认为牙面色斑的发生是口腔卫生不良而引起。
Objective To understand the regularity of dental plaque in preschool children in Liuzhou City, Guangxi Province, and discuss the causes and related factors. Methods Thirteen kindergartens were randomly selected in Liuzhou City, Guangxi Province to investigate the oral health status of the preschool children in the park, such as dentition, dental caries, dental hygiene and so on. The data were statistically analyzed. Results The incidence of dental plaque in children with caries was 7.54%, which was lower than that of caries-free children (15.34%). The incidence of dental plaque was 18.13% in fluoride group, 11.65% in fluoride group and unused Fluoride control group 10.32%; the occurrence of tooth surface stains and the relationship between the soft dirt index was not statistically significant. Conclusion The occurrence of dental plaque may be the result of the change of oral microbial environment, which is related to the use of fluoride of different dosage forms. It can not be considered that the occurrence of dental plaque is caused by poor oral hygiene.