| 牙本质无机物在牙本质粘接过程中的作用 |
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| 引用本文： | 徐普,王同,徐恒昌. 牙本质无机物在牙本质粘接过程中的作用[J]. 中华口腔医学杂志, 1998, 33(5): 306-308 |
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| 作者姓名： | 徐普 王同 徐恒昌 |
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| 作者单位： | 北京医科大学口腔医学院，海口市人民医院口腔科 |
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| 摘 要： | 目的探讨牙本质无机物在牙本质粘接过程中的作用。方法采用几种不同的牙本质处理方法，测试分析了牙本质与４ＭＥＴＡ／ＭＭＡＴＢＢ树脂之间的抗张粘接强度（ｔｅｎｓｉｌｅｂｏｎｄｉｎｇｓｔｒｅｎｇｔｈ，ＴＢＳ）。结果选用１０％柠檬酸和３％三氯化铁组成的酸盐体系预处理液（ａｃｉｄｓａｌｔｐｒｅｔｒｅａｔｉｎｇｓｏｌｕｔｉｏｎｓｙｓｔｅｍ，ＡＰＳＳ）去除牙本质污染层，再用次氯酸钠溶解牙本质胶原。暴露牙本质无机物时，牙本质的抗张粘接强度为５９３ＭＰａ，明显高于用蒸馏水冲洗的对照组（３７１ＭＰａ）（Ｐ＜００５）。结论说明牙本质无机物在牙本质粘接过程中确实具有一定的作用
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| 关 键 词： | 牙本质羟磷灰石 酸-盐体系预处理液 抗张粘接强度 |
Effect of dentin inorganic material during dentin bond |
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| Xu Pu,Wang Tong,Xu Hengchang. School of Stomatology,Beijing Medical University,Beijing. Effect of dentin inorganic material during dentin bond[J]. Chinese journal of stomatology, 1998, 33(5): 306-308 |
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| Authors: | Xu Pu Wang Tong Xu Hengchang. School of Stomatology Beijing Medical University Beijing |
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| Affiliation: | School of Stomatology, Beijing Medical University, Beijing 100081. |
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| Abstract: | Objective In order to investigated the effect of dentin inorganic material during dentin bond.Methods This study investigated the tensile bond strength (TBS) between 4 META/MMA TBB resin and dentin treated with several dentin treating methods.Results When the dentin was treated with acid salt pretreating solution system (APSS) consisting of 10% citric acid and 3% ferric chloride to remove smear layer, and then re treated with NaOCl to resolve dentin collagen and reveal dentin inorganic material, TBS of the dentin was 5.93MPa, and higher than that of control group (3.71Mpa) ( P <0 05) whose dentin was treated with distilled water only.Conclusion It was suggested that dentin inorganic material did play a proper role in dentin bond. |
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| Keywords: | Dentin hydroapatite Acid salt pretreating solution system Tensile bonding strength |
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