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对于幼儿的龋齿,不少家长认为,反正以后会长恒牙,就不带孩子上医院看牙病,或者认为可以早点拔掉。其实,这两种看法都是不正满的。人的一生可以有两副牙齿,即乳牙和恒牙。乳牙通常在婴儿出生后6个月开始萌出,自1岁左右开始发挥作用,到3岁左右乳牙出齐。到6岁左右开始,乳牙开始陆续脱落,被恒牙所代替。恒牙的牙胚在乳牙根下方发育,随着乳牙牙根被吸收,牙根变短、松动、脱落,恒牙就取而代之,可见乳牙与恒牙的关系十分密切。幼儿时期,孩子用乳牙来咀嚼食物,帮助食物消化,咀嚼动作还能促进颌骨及面部肌肉
For children's dental caries, many parents believe that after any permanent president of the permanent president, they will not take their children to the hospital to see a dental disease or think it can be pulled out earlier. In fact, these two views are not satisfactory. A person's life can have two teeth, that is, deciduous teeth and permanent teeth. Teeth teeth usually begin to erupt 6 months after their birth, and begin to function at the age of 1 or so and reach the age of 3 or so. By the age of 6, deciduous teeth began to fall off and were replaced by permanent teeth. Permanent tooth germ in the bottom of the primary root development, with the deciduous teeth root is absorbed, the root becomes shorter, loose, fall off, replaced permanent teeth, showing the relationship between primary teeth and permanent teeth is very close. In early childhood, children chew their teeth with baby teeth to help digest food, chewing maneuvers can also promote the jaw and facial muscles