Morphological relationship between the mandible and teeth : its functional and evolutionary significance

下颌骨和牙齿的形态关系：其功能和进化意义

• 批准号: 22870025
• 负责人: FUKASE Hitoshi
• 金额: $ 2.01万
• 依托单位: Hokkaido University (2011)University of the Ryukyus (2010)
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Research Activity Start-up
• 财政年份: 2010
• 资助国家: 日本
• 起止时间: 2010 至 2011
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-22870025/
• 关键词: 下顎骨; 人類進化; 形態; 成長; 骨格形態; 個体発生; 機能形態

To examine when, how, and to what extent the developing dentition within the mandible is interrelated with external mandibular growth, a series of three comparative studies were undertaken. First, an interpopulation comparison was made between prehistoric Jomon and modern Japanese. Second, sex comparisons were conducted in two cercopithecine primates(hamadryas baboon and Japanese monkey). Finally, interspecies comparisons were carried out among four primate species including modern humans. Through the above studies, some suggestions were made : 1) the relatively large size of the anterior teeth is indicated as the common source of the high anterior corpi of the modern Japanese and the male baboons relative to the Jomon and the female baboons, respectively. 2) both interpopulation and interspecies differences in the placement patterns of the incisor and canine crypts within the developing mandible can be accounted for by the size balance between the developing teeth and mandibular available space. 3) species-specific characteristics of the mandibular symphysis, including the inclination, are largely independent of the adult canine size, and its interspecies differences are consistently maintained throughout growth. The results thus indicate the importance of understanding the spatial conditions of the developing teeth in interpreting mandibular morphology.

为了研究何时、如何以及在何种程度上下颌骨内的牙列发育与下颌骨外生长相关，进行了一系列的三项比较研究。首先，在史前绳文和现代日本人之间进行了人口间比较。其次，在两种猕猴属灵长类（狒狒和日本猴）中进行了性别比较。最后，在包括现代人类在内的四种灵长类物种之间进行了种间比较。通过以上研究，提出了以下几点建议：1）相对于绳纹狒狒和雌性狒狒，相对较大的前牙是现代日本人和雄性狒狒高位前体的共同来源。2)门齿和犬齿隐窝在发育中的下颌骨内的放置模式的种群间和种间差异可以通过发育中的牙齿和下颌骨可用空间之间的大小平衡来解释。3)下颌骨联合的物种特异性特征，包括倾斜度，在很大程度上与成年犬的大小无关，并且其种间差异在整个生长过程中始终保持不变。因此，研究结果表明，在解释下颌骨形态的重要性，了解发育中的牙齿的空间条件。

项目成果

Influence of size and placement of developing teeth in determining anterior corpus height in prehistoric Jomon and modern Japanese mandibles

发育中牙齿的大小和位置对确定史前绳文和现代日本下颌骨前体高度的影响

• 期刊: Anthropological Science (印刷中)
• 作者: Fukase;H.
• 通讯作者: H.

個体発生過程における下顎骨と歯牙の形態学的関連性

个体发育过程中下颌骨与牙齿的形态关系

• 发表时间: 2011
• 作者: Sobhanifar;S.;Schneider;B.;Lohr;F.;Gottstein;D.;Ikeya;T.;Filipek;S.;Guntert;P.;Bernhard;F.;Dotsch;V.;Kodama Y.;深瀬均
• 通讯作者: 深瀬均

個体発生過程における下顎骨正中断面形状と歯胚の配置との関連性:ヒトを含めた4種の霊長類を用いた比較研究

个体发育过程中下颌中段形状与牙胚排列的关系：以人类等四种灵长类动物为对象的比较研究

• 发表时间: 2010
• 作者: 須河光弘;岡田薫;政池知子;西坂崇之;Kodama Y.;深瀬均
• 通讯作者: 深瀬均

先史時代と近代における沖縄諸島の人々の顔面骨形態の特徴～それぞれの時代の本州の人々との比較～

史前和现代冲绳群岛人的面部骨骼形态特征 - 与各时代本州人的比较 -

• 发表时间: 2011
• 作者: 深瀬均;分部哲秋;弦本敏行;佐伯和信;藤田祐樹;石田肇
• 通讯作者: 石田肇

Mandibular tooth root size in modern Japanese, prehistoric Jomon, and Late Pleistocene Minatogawa human fossils

现代日本、史前绳文和晚更新世凑川人类化石中的下颌牙根大小

• DOI: 10.1537/ase.110617
• 发表时间: 2011
• 期刊: Anthropological Science
• 影响因子: 0.7
• 作者: Suwa G;Kono RT;ほか3名
• 通讯作者: ほか3名