loading...| Preferred Name |
premolar tooth |
| Synonyms |
premolars maxillary premolar praemolares præmolares biscuspid bicuspid teeth maxillary bicuspid bicuspid premolar bicuspids secondary premolar tooth premolar tooth pm3 (dentistry) mandibular bicuspid dentes premolares premolar teeth dens premolaris bicuspid tooth |
| Definitions |
The premolar teeth or bicuspids are transitional teeth located between the canine and molar teeth. |
| ID |
http://purl.obolibrary.org/obo/UBERON_0007120 |
| database_cross_reference |
UMLS:C1704302 GAID:1261 NCIT:C32201 SCTID:304572005 MESH:D001641 Wikipedia:Premolar FMA:55637 |
| definition |
The premolar teeth or bicuspids are transitional teeth located between the canine and molar teeth. |
| depicted by |
http://upload.wikimedia.org/wikipedia/commons/6/6c/Gray1003.png |
| has narrow synonym |
secondary premolar tooth |
| has part | |
| has related synonym |
premolars maxillary premolar praemolares præmolares biscuspid bicuspid teeth maxillary bicuspid bicuspid premolar bicuspids premolar tooth pm3 (dentistry) mandibular bicuspid dentes premolares premolar teeth dens premolaris bicuspid tooth |
| has_obo_namespace |
uberon |
| id |
UBERON:0007120 |
| in_subset | |
| label |
premolar tooth |
| never_in_taxon | |
| notation |
UBERON:0007120 |
| prefLabel |
premolar tooth |
| taxon_notes |
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 almost always presents with two lingual cusps. Premolar teeth by definition are permanent teeth distal to the canines preceded by deciduous molars. In primitive mammals there are four premolars per quadrant. The most mesial two have been lost in Catarrhines. Paleontologists refer to human premolars as Pm3 and Pm4 |
| subClassOf |