mention any two characteristic of mammalian teeth
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Mammalian teeth:
1) Diphyodont: 2 generations (not always true!)
2) Heterodont: division of labor, specialized morphologies
(not always true!)
3) Thecodont: sunk in sockets
Enamel: Hardest substance in a
mammal’s body. Almost totally
made of uniformly oriented calcium
phosphate crystals, only about 3%
organic materials. Covers crown of
tooth.
Dentine: Inner material of tooth.
Mostly calcium phosphate, but
higher organic component (about
30%), which makes it softer.
Cement: Softer still, binds teeth to
jaw. May form part of crown in some
complex teeth.
1) Diphyodont: 2 generations (not always true!)
2) Heterodont: division of labor, specialized morphologies
(not always true!)
3) Thecodont: sunk in sockets
Enamel: Hardest substance in a
mammal’s body. Almost totally
made of uniformly oriented calcium
phosphate crystals, only about 3%
organic materials. Covers crown of
tooth.
Dentine: Inner material of tooth.
Mostly calcium phosphate, but
higher organic component (about
30%), which makes it softer.
Cement: Softer still, binds teeth to
jaw. May form part of crown in some
complex teeth.
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