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Fecha  1/05/2013 22:50

Its always necessary keep your teeth clean
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A tooth (plural teeth) is a mignonne, calcified, whitish build initiate in the jaws (or mouths) of innumerable vertebrates and occupied to ease up down food. Some animals, explicitly carnivores, also exercise teeth in behalf of hunting or instead of defensive purposes. The roots of teeth are covered by means of gums. Teeth are not made of bone, but degree of multiple tissues of varying density and hardness.

The ordinary structure of teeth is alike resemble across the vertebrates, although there is of distinction variation in their show up and position. The teeth of mammals get esoteric roots, and this pattern is also initiate in some fish, and in crocodilians. In most teleost fish, however, the teeth are fastened to the outer outwardly of the bone, while in lizards they are fastened to the inner side of the jaw by harmonious side. In cartilaginous fish, such as sharks, the teeth are attached by tough ligaments to the hoops of cartilage that construct the jaw.



                                                                                                                                                                                                                                                                                                                               





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