Dental formula(fraction)
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An animal's dentition for either deciduous or permanent teeth can thus be expressed as a dental formula, written in the form of a fraction: I.C.P.M / I.C.P.M. ... Human: deciduous teeth: 212/212; adult = 2123/2123. Both childhood molars are replaced by adult premolars. Adult total is double the formula = 32.
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in humans taken as I C Pm M/I C Pm M
where
I is for in-scissors
C FOR c-a-n-n-i-n-e-s
Pm for premolars
M for molars
and this is the dental formula for different age groups in humans
ADULTS:2123/2123
TEENAGERS: 2122/2122
CHILDREN:2102/2102
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