Eruption comparison of lower third molars of Chinese recent population

doi:10.3969/j.issn.0529-1356.2014.02.026

Acta Anatomica Sinica ›› 2014 ›› Issue (2) : 283-285. DOI: 10.3969/j.issn.0529-1356.2014.02.026

DAI Cheng-ping LI Hai-jun*

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Abstract

Objective To understand the degeneration of the lower third molars(M₃) of Chinese recent population. Methods This study was conducted on 358 human mandibles from China. M₃ was divided into 3 types: normal, degeneration and absent. Comparisons were made among different time periods. Results The frequency of the degeneration of the lower third molars was the highest in modern people, and the lowest in Neolithic age.Conclusion The frequency of the degeneration of the lower third molars goes up as time period goes by, which may be caused partly by the obvious size decrease of mandibles.

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DAI Cheng-ping LI Hai-jun*. Eruption comparison of lower third molars of Chinese recent population[J]. Acta Anatomica Sinica. 2014(2): 283-285 https://doi.org/10.3969/j.issn.0529-1356.2014.02.026

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