Tooth Growth in Ancient and Modern Times Inferred from Perikymata Growth Intervals; Modeled Statistically
Received Date: Nov 09, 2017 / Accepted Date: Nov 24, 2017 / Published Date: Nov 30, 2017
Tooth growth is essential to health and survival. In humans the growth rate can be inferred from the width of perikymata growth intervals. We hypothesized that in ancient times teeth grew faster than in modern humans. We measured the intervals between perikymata ridges on the surfaces of teeth and in thin sections of molars (which we used as standards) in ancient, prehistoric and modern humans. We compared statistically the results from ancient and modern specimens and assessed the impact of dietary factors and sociality on tooth growth. We found that ancient teeth grew faster than modern teeth (wider intervals) because of environmental, nutritional and life style influences. This apparently conferred evolutionary advantages for human survival. Our results gleaned from combining measurements of sections of teeth with modeling of web-available images suggest that life styles of modern humans have lead to smaller teeth.
Keywords: Tooth growth; Diet; Prehistoric times; Modern times; Sociality connectivity; Faster tooth growth; Smaller teeth modern times
Citation: Qualls C, Costa MA, Paffett M, Appenzeller O (2017) Tooth Growth in Ancient and Modern Times Inferred from Perikymata Growth Intervals; Modeled Statistically. J Biom Biostat 8: 380. Doi: 10.4172/2155-6180.1000380
Copyright: © 2017 Qualls C, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
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