| 不同桩核修复系统对喇叭口状残根修复后牙齿抗折性能的影响 |
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| 引用本文： | 李彤,张丽,张强.不同桩核修复系统对喇叭口状残根修复后牙齿抗折性能的影响[J].中国医疗前沿,2011,6(4):62-63. |
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| 作者姓名： | 李彤 张丽 张强 |
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| 作者单位： | 李彤,LI Tong(山东省济南市口腔医院口腔内科,250001);张丽,张强,ZHANG Li,ZHANG Qiang(山东省济南市口腔医院口腔修复科,250001) |
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| 摘 要： | 目的比较两种不同材料桩核修复系统对喇叭口状残根修复后牙齿抗折性能的影响。方法选择20颗近期拔除的完整人上颌第一双尖牙,截冠后行完善根管治疗,根管口磨除部分牙体组织后形成喇叭口状。然后随机分成两组,分别进行镍铬合金、玻璃纤维桩两种不同材料的桩核冠修复。所有样本包埋后,置于电子万能测试机上进行牙根抗折性能的测试。结果牙根抗折强度镍铬合金组小于玻璃纤维桩组（P〈0.01）。结论在喇叭口状残根保存修复中,玻璃纤维桩核系统应该为一种较好的选择方式。
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| 关 键 词： | 喇叭口状根管 桩核 抗折性能 |
The fracture resistance of flared root canal tooth restored with different post systems |
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| LI Tong,ZHANG Li,ZHANG Qiang.The fracture resistance of flared root canal tooth restored with different post systems[J].China Healthcare Innovation,2011,6(4):62-63. |
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| Authors: | LI Tong ZHANG Li ZHANG Qiang |
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| Institution: | LI Tong*,ZHANG Li,ZHANG Qiang.*Department of Oral medicine,Jinan Dental Hospital,Jinan 250001,China |
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| Abstract: | Objective To compare the fracture resistance of endodontically treated tooth with flared root canal restored with two different post systems.Methods Twenty recently extracted human maxillary premolars were endodontically treated after crown truncation,and then were randomly divided into two groups.Each group teeth were restored with Ni-Cr alloy and Glass-fiber post-core systems differently.All the specimens were placed in the universal material testing machine for fracture resistance test.Results The fractu... |
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| Keywords: | Flared root canal Post and core Fracture resistance |
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