| 酸-盐体系预处理液的pH值对牙本质粘接强度的影响 |
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| 引用本文： | 徐普,王同,徐恒昌.酸-盐体系预处理液的pH值对牙本质粘接强度的影响[J].中华口腔医学杂志,1998,33(1):38-40. |
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| 作者姓名： | 徐普 王同 徐恒昌 |
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| 作者单位： | 海口市人民医院口腔矫形科，北京医科大学口腔医学院 |
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| 摘 要： | 目的探讨酸－盐体系预处理液（ａｃｉｄ－ｓａｌｔｐｒｅｔｒｅａｔｉｎｇｓｏｌｕｔｉｏｎｓｙｓｔｅｍ，ＡＰＳＳ）促进牙本质粘接的机理。方法以４－ＭＥＴＡ／ＭＭＡ－ＴＢＢ树脂为粘接体系，测试了酸处理后再用不同ｐＨ值ＡＰＳＳ处理牙本质的抗张粘接强度（ｔｅｎｓｉｌｅｂｏｎｄｉｎｇｓｔｒｅｎｇｔｈ，ＴＢＳ）。结果随着ＡＰＳＳ的ｐＨ值的降低，牙本质ＴＢＳ从１０．４１ＭＰａ逐渐升高至１５．７３ＭＰａ；金属盐溶液中是否含酸，对牙本质的ＴＢＳ有显著影响（Ｐ＜０．０５）。结论结果提示，ＡＰＳＳ中金属离子存在的形式与牙本质ＴＢＳ密切相关。
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| 关 键 词： | 牙本质粘接剂 氢离子浓度 抗张粘接强度 |
Effect of the pH value of acid-salt pretreating solution system on dentin bonding strength |
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| P Xu,T Wang,H Xu.Effect of the pH value of acid-salt pretreating solution system on dentin bonding strength[J].Chinese Journal of Stomatology,1998,33(1):38-40. |
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| Authors: | P Xu T Wang H Xu |
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| Institution: | Oral Department, Haikou People's Hospital, Haikou 570208. |
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| Abstract: | Objective In order to investigate the mechanism of dentin bond promoted by acid salt pretreating solution system (APSS). Methods The tensile bonding strength (TBS) of 4 META/MMA TBB resin to the dentin, which was treated by acid and retreated by APSS with different pH value, was tested.Results The TBS of dentin rose gradually from 10.41MPa to 15.73 MPa with the decreasing of the pH value of APSS. The metallic salt solution containing acid or not, apparently affected the TBS of dentin. Conclusion This study showed that the form of metallic ion in APSS correlated with the TBS of dentin. |
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| Keywords: | Dentin bonding agents Hydrogen ion concentration Tensile bonding strength |
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