Human teeth are made up of four different types of tissue: pulp, dentin, enamel, and cementum. The pulp is the innermost portion of the tooth and consists of connective tissue, nerves, and blood vessels, which nourish the tooth. The pulp has two parts - the pulp chamber, which lies in the crown, and the root canal, which is in the root of the tooth. Blood vessels and nerves enter the root through a small hole in its tip and extend through the canal into the pulp chamber.
2006-11-03 00:15:57
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answer #1
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answered by mhmdk2003 2
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Teeth have to be very hard to withstand all the chewing and crunching of food. The hard material of the tooth is composed of calcium, phosphorus, and other mineral salts. The material in the majority of the tooth is called dentine. The hard, shiny layer that you brush is called the enamel.
Teeth have two basic parts, a root to anchor the tooth to the jaw and a crown above the gum line. The root is covered with a hard material called cementum. At the center of each tooth is an area with nerves, arteries and veins called the dental pulp.
Humans have four different types of teeth, each with a different function:
1.Incisors for cutting off bites of food.
2.Cuspids (sometimes called canines because of their long sharp points) for tearing food
3. Bicuspids (with two points) to tear and crush food
4.Molars with large relatively flat surfaces to crush and grind food.
Our four different types of teeth together are called collective dentition and they allows humans to be omnivores (eating both meat and vegetables). Most animals have more specialized teeth. Carnivorous (meat eating) animals have long sharp tearing teeth (like our incisors and cuspids). Grazing animals, like cows and horses have large flat teeth (like our molars) for grinding grass and other vegetation.
Hope This Helps know....what are teeth really are made of and what do they do!
and teeth is a bone.(stongest bone in our body) and bones are made of cal. so,you know now what its really made of ;)
2006-11-03 00:54:10
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answer #2
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answered by Wisdom Of The God 1
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Calcium
2006-11-03 00:13:56
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answer #3
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answered by Motherload 3
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Human teeth are made up of four different types of tissue: pulp, dentin, enamel, and cementum.
2006-11-03 00:16:41
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answer #4
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answered by SexyMommy2B 4
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Four diff type of material involved
One of them is calcium
Pls use them properly and judiciousaly dont bore yaaaaar............
2006-11-03 21:01:51
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answer #5
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answered by pp 2
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calcium! Got Milk?
2006-11-03 00:13:40
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answer #6
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answered by Anonymous
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This says that it is not the current lecture, but it is still accurate information. Here is more than you ever wanted to know:
http://www.mse.cornell.edu/courses/engri119/Class_Notes/structure_of_teeth.html
2006-11-03 16:08:41
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answer #7
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answered by Picture Taker 7
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lots of calcium
2006-11-03 00:22:22
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answer #8
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answered by david 2
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calcium
2006-11-04 00:49:44
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answer #9
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answered by DON 2 1
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enamel
2006-11-03 00:19:35
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answer #10
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answered by Vena, Hands, Violent K 2
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