third molar tooth


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third molar tooth

[TA]
eighth permanent tooth in the maxilla and mandible on each side, making it the most posterior tooth in human dentition; usually erupts between the 17th and 23rd years; the roots are often fused, the separation being marked only by grooves; because it tends to erupt in an anterosuperior direction, the lower third molar often becomes impacted against the lower second molar; it is common for one third molar (or more) to fail to develop.

third mo·lar tooth

(thĭrd mō'lăr tūth) [TA]
Eighth permanent tooth in maxilla and mandible on each side, making it most posterior tooth in human dentition; usually erupts between the 17th and 23rd years; roots are often fused, separation being marked only by grooves; because it tends to erupt in an anterosuperior direction, lower third molar often becomes impacted against lower second molar; common for one third molar (or more) to fail to develop.
Synonym(s): dens serotinus [TA] , wisdom tooth.

third mo·lar tooth

(thĭrd mō'lăr tūth) [TA]
Eighth permanent tooth in maxilla and mandible on each side, making it most posterior tooth in human dentition; usually erupts between the 17th and 23rd years; roots are often fused, separation being marked only by grooves; because it tends to erupt in an anterosuperior direction, lower third molar often becomes impacted against lower second molar; common for one third molar (or more) to fail to develop.
Synonym(s): dens molaris tertius [TA] , dens sapientiae, dens serotinus, wisdom tooth.
References in periodicals archive ?
The eruption of third molar tooth is strongly associated with [greater than or equal to] 20 years (P<0.
SUMMARY AND CONCLUSION: The present study was aimed at the assessment of age by examining the eruption of third molar tooth among females between 15-27 years in a hospital in South Tamilnadu.
Another factor which might have affected the study is the position of entire third molar tooth in relation to line of arch and focal trough.
More studies are required to assess the diagnostic accuracy of orthopantomogram in determining the root morphology of impacted mandibular third molar tooth on the study data obtained from general population.
Pain following surgical extraction of impacted third molar tooth is frequently moderate to severe in nature and is a well documented and validated method to study pain5.
1 Eruption of third molar tooth is an usual event which occurs in almost every human life.