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| 球帽附着体下颌种植覆盖义齿牙槽骨的三维光弹应力分析 | |
| 引用本文： | 张青青,马璐,佘文珺.球帽附着体下颌种植覆盖义齿牙槽骨的三维光弹应力分析[J].临床口腔医学杂志,2011,27(7):397-399. |
| 作者姓名： | 张青青 马璐 佘文珺 |
| 作者单位： | 1. 上海浦东新区人民医院口腔科,上海,201200 2. 黑龙江省大庆市人民医院口腔科,黑龙江大庆,163712 3. 上海交通大学医学院附属第九人民医院口腔修复科·上海市口腔医学重点实验室,上海200011 |
| 基金项目： | 上海市科学技术委员会资助(08dz2271100); 上海市重点(特色)学科建设项目(S30206;T0202) |
| 摘 要： | 目的：研究球帽附着体下颌种植覆盖义齿在各种咬合状态时下颌牙槽骨的应力分布。方法：制作球帽附着体下颌种植覆盖义齿光弹模型,分别在正中位、前伸位、侧向位咬合时进行三维光弹应力分析。结果：三种位下,种植体颈部和尖周应力值较大,并且尖周大于颈部;正中余留牙槽嵴内最大应力出现在第二磨牙颊侧;侧向余留牙槽嵴内最大应力值出现在双侧第二磨牙区,工作侧最大应力出现在牙槽嵴唇颊侧,平衡侧最大应力出现在牙槽嵴舌侧;前伸余留牙槽嵴内最大应力出现在第二磨牙区颊侧。结论：球帽附着体下颌种植覆盖义齿在各位咬合状态时种植体颈部和尖周应力集中,尖周应力值最大;余留牙槽嵴内后牙区域的应力值较大。 |
| 关 键 词： | 球帽附着体 种植覆盖全口义齿 三维光弹应力分析 |
Three-dimensional photoelastic analysis of implant-retained overdenture with ball-spring attachment |
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| ZHANG Qing-qing,MA Lu,SHE Wen-jun.Three-dimensional photoelastic analysis of implant-retained overdenture with ball-spring attachment[J].Journal of Clinical Stomatology,2011,27(7):397-399. | |
| Authors: | ZHANG Qing-qing MA Lu SHE Wen-jun |
| Institution: | ZHANG Qing-qing1,MA Lu2,SHE Wen-jun3.1.Department of Stomatology,People's Hospital of Pudong,Shanghai 201200,China,2.Department of Stomatology,People's Hospital of Daqing,Heilongjiang Daqing 163712,3.Department of Prosthodontics,Ninth People's Hospital,Shanghai Jiaotong University,School of Medicine,Shanghai Key Laboratory of Stomatology,Shanghai 200011,China. |
| Abstract: | Objective:To study stress distribution of mandibule under implant-retained overdenture with ball-spring attachment.Method:Photoelastic models of epoxy were fabricated.Force was applied in conditions of centric,lateral and protrusive occlusion.Stress distribution of mandibule was studied with three-dimensional photoelastic analysis.Result:In these three occlusions,stresses were concentrated around the cervical parts and apical parts of implants,and the stress around the apical part was higher.Maximum stress ... |
| Keywords: | ball-spring attachment implant-retained overdenture three-dimensional photoelastic analysis |
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