摘要
目的:了解大鼠牙齿在牙槽骨缺损修复区的移动情况,并比较2种不同修复材料充填缺损的牙槽骨和正常对照侧在牙齿移动距离上是否存在差异。方法:选择44只Wistar雌性大鼠,随机分为倍骼生充填组和羟基聚磷酸钙钠充填组2组,每组22只,于上颌一侧第一磨牙近中造成牙槽骨缺损,按组在缺损区分别填入2种材料(倍骼生和羟基聚磷酸钙钠),另一侧作为对照侧。待术后12周在40只大鼠上颌双侧安装正畸加力装置牵引上颌第一磨牙近中移动,于术后20周测量上颌第一磨牙近中移动距离并行统计学分析。结果:40只大鼠两组(2种材料)修复侧和正常对照侧第一磨牙近中移动距离差异均无统计学意义(P>0.05)。结论:修复牙槽骨侧(2种材料)均可以进行正畸牙齿移动,修复侧(2种材料)的牙齿移动距离与正常对照侧无显著差别。
Objective： To observe the movement of rats＇ molars at the area of defective alveolar bone filled with Perioglas and Hydroxyl poly calcium sodium phosphate （HPPA）. Methods： Forty-four female Wistar rats with alveolar bone defect were randomly divided into two groups： Perioglas and HPPA groups. Orthodontic appliances were fixed to draw the maxillary first molar after 12 weeks. Distances of maxillary first molar movement were measured after 20 weeks. Results： Movement distances of the first molar were not significantly different between the Perioglas group and the normal contralateral group or between the HPPA group and the normal contmlateral group（ P 〉 0.05）. Conclusion： The rats＇ teeth can be moved with orthodontic force at the alveolar bone filled with Perioglas and HPPA, and there were no significant differences of the movement distance of a tooth in the side filled with materials and in the contralateral side.
出处
《山东大学学报（医学版）》
CAS
北大核心
2007年第1期38-41,共4页
Journal of Shandong University:Health Sciences
基金
山东省自然科学基金资助项目(Y2004C13)
山东省医药卫生科技发展计划资助项目(2005HZ038)
关键词
倍骼生
羟基聚磷酸钙钠
正畸牙移动
牙槽骨
Perioglas
Hydroxyl poly calcium sodium phosphate（HPPA）
Orthodontic tooth movement
Alveolar bone
