BIOL 4334 Lecture Notes - Lecture 21: Cementum, Dentin, Diastema
3 Nov 2016
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Document Summary
Made primarily of dentine (dense calcium carbonate material) Enamel hardest most dense tissue in mammals. Sloths and anteaters (no teeth) do not have enamel not much stress put on teeth because of dietary composition. Allows for stronger tooth attachment that opened up a larger range of food. Has an enamel that consists of cementum. Can be useful to age some types of mammals (bear) Pulp cavity contains nerves and blood vessels that maintain dentine. Used for chewing abrasive rough vegetation like structures (bark and plant material) Walrus tusks, or feral pigs are modified canines. Tusks of an elephant are types of modified incisors. Diastema when there is a gap from a missing incisor. Used for other nonabrasive food sources carnivores. Premolars (2 roots) and molars (3 roots, monophydont) maxillary. Cheek teeth are a form of molars. High sugar diet breaks down teeth more quickly. These are in reference to specific teeth and not to the animal.
