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Analysis of Stress in the Root of the Maxillary First Molar on Distal Movement with Finite Element Method.;

上颌第一磨牙远中移动时牙根应力分布的三维有限元分析

Objective: To investigate the root and canal morpho lo gy of extracted maxillary second premolars.

目的:观察上颌第二前磨牙牙根和根管形态,为根管治疗提供解剖学资料。

Objective Using stud type attachments on the natural root in order to get retention for overdentures.

目的 利用天然牙的牙根放置自行研制的球帽型附着体，增强覆盖义齿的固位力。

Objective:To study the best method for slowing down the alveolar bones absorption and keeping the alveolar bones height of the full denture among the aged patients Methods:To observe the alveolar bones absorption under reserved and un-reserved fangs conditions respectively by comparing 79 cases of mantled full denture with 118 cases of ordinary full denture.

方法:通过79例覆盖全口义齿与118例普通全口义齿的比较,观察在有无牙根保留的情况下,牙槽骨的吸收状况。

(2) To discuss the physical characters of BMSCs growth combined with fang and Coralline Hydroxyapatite(CHA) .

②探讨BMSCs及与自体牙根复合生长的特性以及珊瑚羟磷灰石(Coralline Hydroxyapatite，CHA)作为牙周组织工程学载体吸附BMSCs的可行性。

Transformation of Cu forms in Cynodon dactylon rhizosphere soil of copper tailings yard;

铜尾矿库区狗牙根根际土壤铜的形态变化

Optimization for SRAP-PCR system in Cynodon dactylon and selection of primers;

狗牙根SRAP-PCR反应体系优化及引物筛选

Genetic diversity of wild Cynodon dactylon germplasm detected by SRAP markers;

野生狗牙根种质遗传多样性的SRAP研究