As the saying goes, if the upper teeth fall out, throw them on the roof, and if the lower teeth fall out, throw them where.

Throw it under the bed. \ r \ nIf you lose your tooth, let's see if it's the upper tooth or the lower tooth. The upper teeth are thrown to the roof, indicating smooth downward growth; Throw the lower teeth under the bed, which means that they grow smoothly and hope that the teeth grow neatly. \ r \ Children will change their teeth when they are six or seven years old. In order to replace children's teeth with good ones, parents should always check whether there are abnormal teeth in their children's mouths during tooth replacement. Check whether the teeth to be replaced erupt as scheduled, and whether there is inclination or displacement. If you find a problem that needs to be answered, you should take your child to the hospital in time.