《新编拉汉英植物名称》

本书收集具有经济价值和学术价值或通俗常见的种子植物、蕨类植物、苔藓植物、藻类植物、真菌、地衣名称55800条。每种植物名称有拉、汉、英三种文字对照,按拉丁文字母顺序排列。书后附有英文俗名和汉名

A dynamic finite element analysis of stress distribution in supporting bone of mandibular cantilever fixed bridge abutment

AIM: To analyze the stresses induced in the supporting bone tissue of the fixed partial denture abutment in the mandible under transient dynamic loads. METHODS: A three-dimensional model was generated. Finite element analysis was performed on the model under dynamic loads in various directions and positions in a masticating cycle to study the magnitude and distribution of the stresses in the supporting bone of abutments. RESULTS: Oblique loads tended to produce more stress concentration. The peak stress value was 77.676 MPa at the neck of cortical bone with cantilever bridge. The residual stress in alveolar bone was not obvious in a masticating cycle. CONCLUSION: The stress on the abutment nearest to the pontic is the highest. The loading direction affects the magnitude and distribution of stresses. The peak stress value is less than the strain limit of mandible.