jaw

How Jaws Shrink With Age and Does This Affect Wisdom Teeth Crowding?

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A recent article titled “A 40 years follow-up of dental arch dimensions and incisor irregularity in adults.” by Nokolasos, Tsiopas, Maria Nilner, Lars Bondemark, and Krister Bjerklin, appearing the The European Journal of Orthodontics Advance Access published October 19, 2011, explores how the jaw is affected over a 40 year time period. The study started in 1949 with 22 males and 13 females (35 total) and after 40 years in 1989, 18 of these participants were still able to participate. Three dental stone study casts were made for the 18 participants who completed the 40 years of the study. The authors state: “The present study showed that the occlusion, overbite, and overjet was stable, but dentoalveolar changes occur in the adult dentition. In the anterior part of the dentition, decreases in arch length and width lead to anterior crowding. There was also an … Read more

Animals Have Room for Wisdom Teeth

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An article recently posted by Popular Science http://www.popsci.com/scitech/article/2009-08/do-animals-have-wisdom-teeth suggests that animals have room for wisdom teeth. An evolutionary biologist named Leslea Hlusko of the University of California, Berkeley, suggests that the shape of your jaw is partially determined by what you eat when you are growing up. Since unlike animals, humans cook all the meat they eat usually and do not just tear it off raw, jaws have become smaller in size. The article also suggests that if you eat a lot of raw carrots and other tubers as a child this may help to make the jaw larger when you get older and thus better accomedate your wisdom teeth so the wisdom teeth do not have to be removed.