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( Molars)
Molars are the rearmost and most complicated kind of tooth in most mammals. In many mammals they grind food; hence the Latin name mola, "millstone". Adult humans have twelve molars, in four groups of three at the back of the mouth. The third rearmost molar in each group is called a wisdom tooth. It is the last tooth to appear, breaking through the surface of the gum at about the age of twenty, although this varies from individual to individual. Ethnicity can also have an impact on the age at which this occurs, with statistical variations between groups. The types of molars in the human mouth are maxillary first molars, maxillary second molars, and maxillary third molars mandibular first molars, mandibular second molars, and mandibular third molars Molars differ considerably from one species to another, so there are many terms describing them
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