...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Anthropological science: Journal of the Anthropological Society of Nippon >A morphological study of the tooth roots of the Sima del Elefante mandible (Atapuerca, Spain): a new classification of the teeth biological and methodological considerations
【24h】

A morphological study of the tooth roots of the Sima del Elefante mandible (Atapuerca, Spain): a new classification of the teeth biological and methodological considerations

机译：Sima del Elefante下颌骨（西班牙阿塔普尔卡）的牙根形态学研究：牙齿生物学和方法学考量的新分类

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The recent application of microtomographic techniques to dental morphological studies has revealed an untapped source of biological information about extinct and extant human populations. In particular, this methodology has helped to characterize internal dental structures (enamel–dentine junc-tion, pulp chamber, and radicular canals), maximizing the amount of information that can be extracted from a given specimen. In this study, we present a three-dimensional evaluation of the dental roots of the Sima del Elefante mandible, ATE9-1 (Atapuerca, Spain) by visual inspection, and by tomographic and microtomographic techniques. With 1.3 Myrs of age, this fossil represents the earliest hominin re-mains in Europe, and one of the very few human fossils for this period and region. Through this case study we aim to present a protocol for the description of the internal dental spaces, exemplify how the application of microtomographic techniques can significantly increase the amount of relevant and in-formative morphological features (even in the case of fragmentary/heavily worn teeth or teeth with hypercementosis), and explore some biological considerations about external and internal root morphol-ogy. There is neither a general nor straightforward correspondence between the external root morphol-ogy and the root canals. In cases where a high degree of hypercementosis is present, the external root anatomy can be highly confusing. Indeed the assessment of the internal root anatomy of ATE9-1 teeth has led us to the reclassification of the LC and the LP3 with respect to previous publications. The re-sults of this study suggest that internal root anatomy could be used as a complementary source of bi-ological information.
机译：显微断层扫描技术在牙科形态学研究中的最新应用揭示了关于已灭绝和现存人群的生物学信息的未开发来源。特别是，这种方法有助于表征牙齿的内部结构（牙釉质-牙齿的接合处，牙髓腔和根管），从而最大程度地从特定样本中提取信息。在这项研究中，我们通过目视检查，断层摄影和显微断层摄影技术，对Sima del Elefante下颌骨ATE9-1（西班牙阿塔普尔卡）的牙根进行了三维评估。这种化石的年龄为1.3迈尔，代表了欧洲最早的人类化石遗迹，也是这一时期和该地区为数不多的人类化石之一。通过本案例研究，我们旨在提供一种描述内部牙齿空间的协议，以例证显微断层扫描技术的应用如何显着增加相关和信息形态特征的数量（即使在牙齿零碎/磨损严重的情况下）或患有高水泥症的牙齿），并探索有关外部和内部牙根形态学的一些生物学考虑。外部牙根形态学与根管之间既没有一般性的联系也没有直接的联系。如果存在高度的高水泥过多症，则外部根部解剖结构可能会造成高度混乱。确实，对ATE9-1牙齿的内部根部解剖结构的评估已使我们对LC和LP3进行了相对于先前出版物的重新分类。这项研究的结果表明，内部根部解剖学可以用作生物学信息的补充来源。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号