Source:http://linkedlifedata.com/resource/umls/id/C0026369
MSH: The aftermost permanent tooth on each side in the maxilla and mandible.,NCI: Any one of the rearmost molars on each side of the upper and lower jaw in humans.,NCI: The last tooth to come in at the back of each side of the upper and lower jaws. Third molars usually come in between 17 and 23 years of age, but not everyone has them.