世界卫生组织(WHO)曾将龋齿列为全球第3位需重点防治的慢性非传染性疾病,龋病患儿咀嚼功能的减弱,影响其消化和吸收功能,造成机体抵抗力下降,严重影响儿童生长发育与健康[1-2]。龋病是在以细菌为主的多种因素影响下,牙体硬组织发生无机物脱矿、有机物分解的一种慢性进行性破坏的 World Health Organization (WHO) has caries as the world’s No. 3 need to focus on prevention and treatment of chronic non-communicable diseases, caries in children with chew function weakened, affecting its digestion and absorption function, resulting in decreased body resistance, seriously affecting children Growth and Health [1-2]. Caries is a bacteria under the influence of many factors, the hard tissue of tooth demineralization, decomposition of organic matter of a chronic progressive destruction