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有些家长对幼儿晚期孩子的牙齿发育存在着一种偏见:常常错误地认为换牙前孩子的牙齿出现一些问题(如龋齿等)无所谓,反正换了牙就万事大吉了。因此,我们常常可以看到许多学龄前儿童的牙齿出现龋病,既不美观,也给孩子带来一些痛苦,更重要的是,这些问题将会影响到孩子以后的生活。我们一生是有两副牙齿的,即一副乳牙和一副恒牙(乳牙20颗,恒牙32颗)。它们的生长发育情况是这样的:婴儿在六个月左右时开始出牙,它们按照下中切牙,上切牙,下侧切牙,第一乳磨牙,尖牙,第二乳磨牙的顺序萌出,随着年龄的增长逐渐长芥。然后到了七、八岁时按长出的顺序逐个脱落代之
Some parents have a prejudice against the development of their children's teeth: It is often wrong to think that there are some problems (such as dental caries) in children's teeth before changing teeth. Therefore, we often can see many preschool children's dental caries, neither beautiful, but also to bring some pain to children, more importantly, these problems will affect their children's future life. Our life is a pair of teeth, that is a pair of deciduous teeth and a permanent tooth (20 teeth, permanent teeth 32). Their growth and development are as follows: infants begin teething at about six months, they follow the order of the incisors, incisors, incisors, first molars, canines, second molars , Gradually growing with age. Then by the age of seven, one by one, according to the order of growing up