Why Our Teeth Come Out Twice?
Our teeth do most things for us. They get tired all day. If we look from this perspective, everything seems normal, huh? Have you ever thought about why our teeth come out twice? Do we really need a new set of teeth? Before our permanent teeth, milk teeth come out. After their coming out, they grow and drop within a few years. So people think that they are not so necessary. But it's just an assumption. Milk teeth are important for permanent teeth's growth and correct coming out. If a person doesn't take good care of their teeth, it may cause some problems in the future. Teeth start to grow when mom is pregnant. A normal person has 20 milk teeth, which have 5 to 9 years durabiliyt. They are not long-lasting, they start to consume away about 3 years later. If children lost teeth early or late, side teeth move to the empty place and close it. When permanent teeth want to come out, they face a big handicap for their hello to the world. So tooth changes other teeth's places ...