华西医科大学学报2001，Vol.32Issue(1)：77-79,82,4.
咬合力增强和减弱对大鼠磨牙牙周支持组织形态学的影响
Effect of Increased and Decreased Bite Force on Morphology of Periodontal Tissues
刘飞 1赵云凤 1李明哲 1刘卫平 2王华蓉1
作者信息
- 1. 华西医科大学口腔医院修复科
- 2. 华西医科大学附属第一医院病理科
- 折叠
摘要
Abstract
Objective The aim of this study was to observe th e effect ofbite force o n morphology of periodontal tissues.Methods Animal models were induced by extracting th e left maxillary molars; the left mandibular molars served as decreased bite for ce models; the right mandibular molars served as increased bite force models. Th e dynamic changes of widths of periodontal ligament and cementum were measured. Results In decreased bite force group, there were significant m orphologic changes of per iodontal tissues after 1 week. In increased bite force group, there was no signi ficant change. Ligament widths were significantly different after 2,3 weeks resp ectively in those two groups, compared with that in control group (P<0.05). There were significant differences between proximal alveolar wall and distal alveolar wall in width(P<0.05). Conclusion The histological morphol ogy is closely related to the me chanical condition. Physiological bite force is necessary for periodontal ligame nt to maintain its physiological structure.关键词
咬合/牙周组织/形态学分类
医药卫生引用本文复制引用
刘飞,赵云凤,李明哲,刘卫平,王华蓉..咬合力增强和减弱对大鼠磨牙牙周支持组织形态学的影响[J].华西医科大学学报,2001,32(1):77-79,82,4.
