DENTITION:

Dentition pertains to the development of teeth and their arrangement in the mouth. In particular, the characteristic arrangement, kind, and number of teeth in a given species at a given age. That is, the number, type, and morpho-physiology of the teeth of an animal.
Animals whose teeth are all of the same type, such as most non-mammalian vertebrates, are said to have homodont dentition, whereas those whose teeth differ morphologically are said to have heterodont dentition. The dentition of animals with two successions of teeth ((deciduous, permanent) is referred to as diphyodont, while the dentition of animals with only one set of teeth throughout life is monophyodont. The dentition of animals in which the teeth are continuously discarded and replaced throughout life is termed polyphyodont.



<sup>TYPES OF DENTITION IN HUMANS:
Deciduous:commonly known as milk teeth which are temporary.
Permanent:which emerge in oral cavity after shedding of deciduous dentition.


DENTAL FORMULA:</sup>

1. Deciduous: (di² − dc¹ − dp²) / (di₂ − dc₁ − dp₂)x2 = 20. This can also be written as . Or as , if the fact that it pertains to deciduous teeth is clearly stated, per examples found in some texts such as The Cambridge Dictionary of Human Biology and Evolutio
2. Permanent: (I² − C¹ − P² − M³) / (I₂ − C₁ − P₂ − M₃) = 32. This can also be written as . When the upper and lower dental formulae are the same, some texts write the formula without a fraction (in this case, 2.1.2.3), on the implicit assumption that the reader will realise it must apply to both upper and lower quadrants. This is seen for example throughout The Cambridge Dictionary of Human Biology and Evolution.