Influence of the Interproximal Attrition of Teeth on the Formation of Neanderthal Retromolar Space

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Sixteen Neanderthal mandibles together with those of five European middle Pleistocene <i>Homo</i> specimens, and over one hundred prehistoric Jomon crania from Japan were examined to clarify whether the presence of large retromolar space, one of the unique facial features of Neanderthals, is at least in part a consequence of forward migration of the teeth caused by heavy interproximal attrition. When the Neanderthal and the Jomon samples were divided according to age or magnitude of tooth attrition, the reduction of olar teeth length and the enlargement of retromolar space with the vance of age or tooth attrition were indicated in both samples. The results suggest that the retromolar space is a morphological complex containing heterogeneous factors, one of which is the secondarily acquired one caused by forward migration of the postcanine dentition.

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各種コード

  • NII論文ID(NAID)
    10002618930
  • NII書誌ID(NCID)
    AA10915022
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    09187960
  • NDL 記事登録ID
    4647440
  • NDL 雑誌分類
    ZS1(科学技術--人類学)
  • NDL 請求記号
    Z54-J370
  • データ提供元
    CJP書誌  NDL  NII-ELS  J-STAGE 
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