| 陈辉,胡铮,冯静,刘泓虎,沈刚.双槽沟托槽滑动阻力的实验研究[J].口腔材料器械杂志,2012,21(3):130-132. |
| 双槽沟托槽滑动阻力的实验研究 |
| Experimental study in resistance to sliding in tein-slot bracket during simulated canine retraction |
| 投稿时间：2012-02-20 修订日期：2012-06-20 |
| DOI：10.11752/j.kqcl.2012.03.05 |
| 中文关键词: 双槽沟托槽 模拟尖牙滑动 滑动阻力 |
| 英文关键词:Twin-slot bracket Simulated Canine retraction Sliding resistance |
| 基金项目:上海市科学技术委员会资助(编号08DZ2271100) |
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| 中文摘要: |
| 目的： 评价模拟尖牙滑动时双槽沟托槽的滑动阻力,探讨临床应用双槽沟托槽的合适牵引力。方法： 将粘有托槽的人工尖牙置于硅胶槽内,分别在10g、15g和20g力牵引下沿弓丝滑动。双槽沟托槽组中人工尖牙在双圆丝(直径0.016英寸和0.018英寸)支撑下移动。对照组为常规方丝托槽和方丝(0.016英寸×0.022英寸)组合。通过激光测距仪及相连计算机得到的牙齿移动速率,分析牙齿滑动时所受阻力的大小。结果： 牵引力为10g力和15g力时,双槽沟托槽组平均移动速率较小。当牵引力增加到20g力,双槽沟托槽组平均速率大于常规托槽组。结论： 在足够牵引力的作用下,双槽沟托槽配合双圆丝(直径0.016英寸和0.018英寸)组合的滑动阻力并不比常规托槽和0.016英寸×0.022英寸方丝组合大。 |
| 英文摘要: |
| Objective: To develop an interactive method for computing virtual cutting plane through 3D CT images. Methods: Dental implant patients will accept Philips Brilliance 64-Slice Spiral CT scan. DICOM datas were gained and 3D image was reconstructed by computer aided design implantation system. In this way we can visualize root axial orintation,the original orientation of missing teeth had finally been reconstructed. Conclusions: Due to this interactive method,finally an accurate orientation and angle of dental implantation were offered. And then implantation were offered. And then implantation surgical guide could be designed and made. |
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