Monday, December 9, 2013

Teeth

What's the difference between "baby" teeth and permanent teeth? At between six and ten months of age, most infants begin to get their "baby" teeth.
The Central Incisors (front middle teeth) usually come in first, and then teeth begin appearing on either side and work their way back to the second molars. By the time a child has reached three years old, most of the "baby" teeth should be present.We have two sets of teeth during our lifetime; they are deciduous teeth and permanent teeth. There are altogether 20 deciduous teeth and 32 permanent teeth. 
  •      The process begins to repeat itself when the child is about seven years old. The Central Incisors fall out first and are replaced by permanent teeth. By the age of 21, most people have all of their permanent teeth."Baby" teeth are important because they hold the place for permanent teeth and help guide them into correct position. "Baby" teeth play an important role in the development of speech and chewing. Teeth are used to help break down food                        Humans form 2 sets of teeth over the course of their lives.
1.Teeth are used to help break down food.
2.Humans form 2 sets of teeth over the course of their lives.
3.The first set (sometimes called baby teeth) features 20 teeth.
4.The second set (sometimes called adult teeth) features 32 teeth.
5.Baby teeth are usually replaced by adult teeth between the ages of 6 and 12.
6.Humans have a variety of teeth including molars, premolars, canines and incisors.
7.Incisors help bite pieces from food.
8.Canines help hold and tear food apart.
9.Molars help grind food.
10.Teeth are covered in a hard substance called enamel.
11.Teeth are surrounded by gums.
12.Cavities can damage a tooth if left untreated.
13.Braces are often used to help straighten or align teeth.

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