Horse teeth refers to the dentition of equine species, including horses and donkeys. Equines are both heterodontous and diphyodontous, which means that they have teeth in more than one shape (there are up to five shapes of tooth in a horse's mouth), and have two successive sets of teeth, the deciduous ("baby teeth") and permanent sets.
As grazing animals, good dentition is essential to survival, and continued grazing creates specific patterns of wear, which can be used along with patterns of eruption to estimate the age of the horse.
Read more about Horse Teeth: Types of Teeth, Tooth Growth, Tooth Wear, Continuous Eruption and Loss, The Teeth and The Bit, Dental Problems, In Popular Culture
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—Gwendolyn Brooks (b. 1917)