(mō′lăr)
[L. molaris, grinding]
A grinding or back tooth, one of three on each side of each jaw. The first permanent molar erupts between 6 and 7 years; the second between the 13th and 16th years. The third molars (wisdom teeth) are extremely variable, usually erupting between the 18th and 25th years; however, they may erupt later or not at all.
SEE: dentition for table; SEE: teeth

impacted molar

A tooth that is unable to erupt into its place in normal occlusion, typically because there is not enough space in the dental arch to accept it. This condition is commonly related to the third molar (wisdom tooth).

mulberry molar

A malformed first molar with dwarfed cusps and aggregations of enamel globules around the surface so that the crown has the appearance of a berry. This condition is seen in congenital syphilis and other diseases.

third molar

Wisdom tooth.