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|Title:||The main occluding area between opposing teeth during chewing: a comparison between Australians and Japanese|
|Citation:||New Directions in Dental Anthropology: paradigms, methodologies and outcomes, 2012 / Townsend, G., Kanazawa, E., Takayama, H. (ed./s), pp.106-114|
|Publisher:||University of Adelaide Press|
|Hiroshi Takayama, Hitoshi Kato and Grant Townsend|
|Abstract:||The Main Occluding Area (MOcA) defined by Kato (1996) has been found to almost always be located between the upper and lower first molars in Japanese. However, there have not been any reports of this feature in other human populations. In this study, the location of the MOcA was assessed in a sample of 80 Australian dental students as part of an exercise relating to dental occlusion. A piece of stopping material was used to locate the MOcA and to determine the preferred chewing side. There was no significant difference between published findings for Japanese and those for Australians in relation to the location of the MOcA, nor were there any significant differences between ethnicities represented within the Australian sample. However, there was a difference between ethnicities within the Australian sample in the preferred chewing side, with Asians displaying a preference for the left side. We propose that the location of the MOcA is relatively stable across human populations, having being derived from the tribosphenic biting system of the earliest mammals. The diference observed in preferred chewing side between Europeans and Asians may relate to differences in the use of food utensils between these groups.|
|Appears in Collections:||Aurora harvest 4|
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