前言龋病是口腔医学领域内的一种常见病、多发病。我国人口龋患率平均约50%,少年儿童的龋患率还稍偏高。少年儿童时期,由于牙齿的钙化程度较低,牙(牙合)面点隙裂沟异常细窄或形态变异,一般无自洁作用,人工清洁也较困难等组织解剖结构上的缘故,再加之它处的特定口腔环境,所以,少年儿童(牙合)面龋就以发病高、病损进展较快为其特点。据报导,(牙合)面龋可点总龋牙数80 Introduction Caries is a common and frequently occurring disease in the field of stomatology. The average caries prevalence in China is about 50%, and the caries prevalence in children and adolescents is slightly higher. Children, due to the low degree of calcification of the teeth, teeth (occlusal) nodus gap fissure abnormal narrow or morphological variation, generally no self-cleaning effect, manual cleaning is also more difficult to organize the anatomy of the reason, coupled with It is a specific oral environment, so children (occlusal) caries on the high incidence of disease progression is characterized by rapid. It is reported that (occlusal) caries can point total caries teeth 80