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乳牙共有20只,约在幼儿两岁半时出齐,由于乳牙的钙化程度较恒牙低,表面的釉质层较薄,加上幼儿缺乏保持口腔卫生的自觉性,因此乳牙更易发生龋坏(“蛀牙”“虫牙”)。根据专家们的统计,我国儿童乳牙的龋齿患病率城市为79.55%,农村为58.48%,这对儿童口腔及全身健康危害不小。尤其值得注意的是其中大部分孩子的龋坏乳牙没有得到及时治疗,有的甚至全口牙都成了病变晚期的残根、烂冠,严重影响儿童的咀嚼消化功能及身体健康发育。乳牙龋坏疼痛妨碍幼儿进食,食欲下降,吃饭慢,又嚼不
A total of 20 primary deciduous teeth, about two and a half years old children alike, due to lower primary calcification than permanent teeth, the surface of the enamel layer thin, coupled with the lack of child care to maintain oral hygiene consciousness, so deciduous teeth more prone to caries “Tooth decay” “worm tooth”). According to the experts’ statistics, the prevalence rate of deciduous teeth in children deciduous teeth in our country is 79.55% in urban areas and 58.48% in rural areas, which is harmful to children’s oral and systemic health. Especially noteworthy is that most of the children’s decayed primary deciduous teeth have not been treated in time, and some even the whole mouth teeth have become the late remnants of the lesion, rotten crown, seriously affecting children’s chewing and digestive function and physical development. Deciduous dental decay pain hinder children eating, loss of appetite, eating slowly, but also chew not