Eruption Sequence of the Lower Permanent Dentition of Lufengpithecus lufengensis  

作　　者：ZHAO Ling-xia LU Qing-wu HE Zhu-fang 

机构地区：[1]Institute of Vertebrate Paleontology and Paleoanthropology,Chinese Academy of Sciences,Beijing 100044,China [2]Taiyuan University of Technology,Taiyuan 030024,China

出　　处：《人类学学报》2002年第S1期14-18,共5页Acta Anthropologica Sinica

基　　金：supported by National Science Foundation of China(40002003)

摘　　要：The paper aims to reconstruct the eruption sequence of the permanent teeth of Lufengpithecus lufengensis. Eruption sequence here means the order of appearance of the tooth crowns out of the alveolar crypt. The permanent dental developments of five juvenile mandibles are observed and analyzed via radiograph. Using such records as the stages of crown and root formation, location of the crown occlusion relative to the alveolar margin, and wear degrees of the erupted teeth, the eruption sequence of the mandibular permanent teeth of Lufengpithecus lufengensis is reasonably derived as M1 I1 I2 M2 P3 P4 C M3. This order is seen to differ very markedly from that in modern humans, and to be similar to that in apes.The paper aims to reconstruct the eruption sequence of the permanent teeth of Lufengpithecus lufengensis. Eruption sequence here means the order of appearance of the tooth crowns out of the alveolar crypt. The permanent dental developments of five juvenile mandibles are observed and analyzed via radiograph. Using such records as the stages of crown and root formation, location of the crown occlusion relative to the alveolar margin, and wear degrees of the erupted teeth, the eruption sequence of the mand...

关 键 词：Eruption sequence of mandible dentition Lufengpithecus lufengensis 

分 类 号：Q981[天文地球—古生物学与地层学]