Information About

Premolar




  Latin dentes premolares
  GraySubject 242
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  Caption The permanent teeth, viewed from the right
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  Caption2 Permanent teeth of right half of lower dental arch, seen from above
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  MeshName Premolar
  MeshNumber A14549167860150
  DorlandsPre t_13
  DorlandsSuf 12813062


The premolar Teeth or '''bicuspids''' are transitional teeth located between the Canine and Molar teeth. In humans, there are two premolars per Quadrant , making eight premolars total in the mouth. They have at least two Cusps . Premolars can be considered as a 'transitional tooth' during chewing, or Mastication . It has properties of both the Anterior canines and Posterior molars, and so food can be transferred from the canines to the premolars and finally to the molars for grinding, instead of directly from the canines to the molars.

The premolars in humans are the Maxillary First Premolar , Maxillary Second Premolar , Mandibular First Premolar , and the Mandibular Second Premolar .

There is always one large Buccal cusp, especially so in the mandibular first premolar. The lower second premolar always presents with two Lingual cusps.

Premolar teeth by definition are permanent teeth Distal to the Canine s preceded by Deciduous molars. In primitive Mammal s there are four premolars per quadrant. The most Mesial two have been lost in New World Monkeys , apes, and humans. Paleontologists refer to Human premolars as Pm3 and Pm4 .


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