Editing Dentition (section)

===Tooth naming discrepancies===
Teeth are numbered starting at 1 in each group. Thus the [[human]] teeth are I1, I2, C1, P3, P4, M1, M2, and M3.<ref name="CambridgeDictHumBiol&EvolDentalEruption"/> (See next paragraph for premolar naming etymology.) In humans, the third molar is known as the [[wisdom tooth]], whether or not it has erupted.<ref name=Harris1988p34/>

Regarding premolars, there is disagreement regarding whether the third type of deciduous tooth is a premolar (the general consensus among mammalogists) or a molar (commonly held among human anatomists).<ref name="CambridgeDictHumBiol&Evolp135"/> There is thus some discrepancy between nomenclature in zoology and in dentistry. This is because the terms of human dentistry, which have generally prevailed over time, have not included mammalian dental evolutionary theory. There were originally four premolars in each quadrant of early mammalian jaws. However, all living primates have lost at least the first premolar. "Hence most of the [[prosimian]]s and [[platyrrhine]]s have three premolars. Some genera have also lost more than one. A second premolar has been lost in all catarrhines. The remaining permanent premolars are then properly identified as P2, P3 and P4 or P3 and P4; however, traditional dentistry refers to them as P1 and P2".<ref name=Swindler2002/>