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| 模拟长期口腔环境下桩核结合力的研究 | |
| 引用本文： | 刘萍,谭智,廖运茂,朱智敏,周燕玲. 模拟长期口腔环境下桩核结合力的研究[J]. 川北医学院学报, 2009, 24(5): 440-442 |
| 作者姓名： | 刘萍 谭智 廖运茂 朱智敏 周燕玲 |
| 作者单位： | 1. 川北医学院口腔系,四川,南充,637000 2. 四川大学口腔疾病研究国家重点试验室,四川,成都,610041 3. 四川大学华西口腔医学院修复科,四川,成都,610041 |
| 摘 要： | 目的比较冷热循环前后预成桩与树脂核的结合力。方法采用玻璃纤维桩分别与Paracore、C learfill、Durafill和F2000复合体核材料结合。测试冷热循环前后桩核间结合力并对其进行比较。结果冷热循环前后,Paracore和C learfill与桩的结合力无变化,Durafill和F2000复合体在冷热循环后与桩的结合力变弱。结论为获得良好的远期修复效果,应选择强度高、流动性好的树脂材料成核。 |
| 关 键 词： | 预成桩 树脂核 冷热循环 结合力 |
Comparative Study on the Adhesive Strength between Different Posts and Cores before and after Thermal Cycling |
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| LIU Ping,TAN Zhi,LIAO Yun-mao,ZHU Zhi-min,ZHOU Yan-ling. Comparative Study on the Adhesive Strength between Different Posts and Cores before and after Thermal Cycling[J]. Journal of North Sichuan Medical College, 2009, 24(5): 440-442 | |
| Authors: | LIU Ping TAN Zhi LIAO Yun-mao ZHU Zhi-min ZHOU Yan-ling |
| Affiliation: | LIU Ping , TAN Zhi, LIAO Yun-mao , ZHU Zhi-min , ZHOU Yan-ling (1. Department of Dentistry, North Sichuan Medical College, Nanchong, Sichuan 637000, China; 2. State Key Laboratory of Oral Diseases, Sichuan University, Chengdu , Sichuan 610041, China ; 3. Departmen of Prosthodontics , West China College of Stomatology , Sichuan University, Chengdu , Sichuan 610041 , China) |
| Abstract: | Objective To compare the adhesive strength between prefabricated posts and resin core materials before and after thermal cycling. Methods Four types of posts and cores（Tenax Fiber White post with ParaCore, clearfill, Durafill and F2000）were made. The adhesive strength between different posts and cores was measured with a universal testing machine before and after thermal cycling. Results The adhesive strength between posts and Paraeore or Clearfill cores was not different before and after thermal cycling. The adhesive strength between posts and Durafill or F2000 cores was lower after thermal cycling. Conclusion To achieve good clinical performance, we should choose core materials which have high intension and good liquidity. |
| Keywords: | Prefabricated post Resin core Thermal cycling Adhesive strength between post and core |
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