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碳化二亚胺乙醇溶液表面处理对牙本质微拉伸粘接强度的影响 预览

Influence of carbodiimide-ethanol solution surface treatment on dentin microtensile bond strength
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摘要 目的:探讨碳化二亚胺盐酸盐[1-ethyl-3-(3-dimethylaminopropyl)carbodiimide,EDC]乙醇溶液表面处理对牙本质即刻微拉伸粘接强度、断裂模式和粘接界面微观形态的影响。方法:称取不同质量EDC溶解于无水乙醇中,配制不同浓度(2、1、0.3、0.1、0.01 mol/L)的EDC乙醇溶液。将28颗人离体第三磨牙随机平分为7组:5种浓度的EDC处理组、未处理组、乙醇溶剂处理组。在低速精密切割机下去除牙合面牙釉质,暴露中层牙本质,35%(质量分数)磷酸凝胶酸蚀后根据不同分组对脱矿牙本质表面分别进行处理60 s,使用全酸蚀粘接剂(Single Bond 2)粘接处理后,堆塑复合树脂并固化。室温下保存24 h后,制备标准条形试件并测定微拉伸粘接强度,在体视显微镜下对试件的断裂模式进行观察。结果:2 mol/L组[(22.17±13.31)MPa]和1 mol/L组[(45.31±17.80)MPa]的粘接强度显著下降(P〈0.05),粘接断裂模式发生的比例明显提高,分别为81.2%和41.3%。其余各组粘接强度差异无统计学意义(P〉0.05)。结论:0.3、0.1和0.01 mol/L的EDC乙醇溶液表面处理对牙本质即刻粘接强度无明显影响,2 mol/L和1 mol/L的EDC乙醇溶液表面处理会显著降低牙本质即刻粘接强度。 Objective: To evaluate the microtensile bond strength changes and patterns of fractures of the bonding interface after dentine surface treatment with carbodiimide-ethanol solution. Methods: 1-ethyl-3-( 3-dimethylaminopropyl) carbodiimide( EDC) dissolved in ethanol was diluted into different concentrations of 2,1,0. 3,0. 1 and 0. 01 mol / L EDC-ethanol solutions. Twenty-eight caries-free extracted human third molars were ground metallurgically to prepare flat occlusal mid-coronal dentin surfaces and etched with 35%( mass fraction) phosphoric acid gel. Then they were treated with EDC-ethanol solution for 60 s before the bonding procedure and randomly divided into five experimental groups corresponding to the tested EDC-ethanol concentrations. The ethanol treated and no pre-treated surfaces were used as controls. Single Bond 2 adhesive was applied and resin composite disk was stacked on the treated dentine surface. The teeth with resin composite disks were stored in water at room temperature for 24 h and then sectioned longitudinally to produce stick specimens for microtensile bond strength test. Fracture patterns were observed with a stereomicroscope. Results: The dentin surfaces pre-treated with 2 mol / L [( 22. 17 ±13. 31) MPa] and 1 mol / L [( 45. 31 ± 17. 80) MPa]EDC-ethanol solutions resulted in statistically significant lower bond strength value( P〈0. 05). Increasing numbers of fracture pattern at the resin-dentin interface were also found in this two groups with percentages of 81. 2% and 41. 3% respectively. No significant difference was observed in the groups with 0. 3,0. 1,0. 01 mol / L EDC surface treatment( P〈0. 05). Conclusion: No significant difference of immediate bond strengths was found in the 0. 3,0. 1,0. 01 mol / L groups compared with the control group. EDC-ethanol solution surface treatment with concentrations of 2 mol / L and 1 mol / L resulted in decreasing of the bonding strength.
作者 张一 刘玉华 周永胜 钟国雄 ZHANG Yi;LIU Yu-hua;ZHOU Yong-sheng;CHUNG Kwok-hung( 1. Department of Prosthodontics, Peking University School and Hospital of Stomatology, Beijing 100081, China; 2. De- partment of Restorative Dentistry, University of Washington, Seattle 357456, USA)
出处 《北京大学学报:医学版》 CAS CSCD 北大核心 2015年第5期825-828,共4页 Journal of Peking University:Health Sciences
关键词 碳化二亚胺类 交联试剂 牙本质 牙黏合 微拉伸强度 Carbodiimides Cross-linking reagents Dentin Dental bonding Microtensile strength
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参考文献14

  • 1Loguercio AD, Moura SK, Pellizzaro A, et al. Durability of enamel bonding using two-step self-etch systems on ground and unground enamel[J]. Oper Dent, 2008, 33(1): 79 -88. 被引量:1
  • 2Bedran-Husso AK, Pauli GF, Chen SN, et al. Dentin biomodification: strategies, renewable resources and clinical applications[J]. Dent Mater, 2014, 30( 1) : 62 -76. 被引量:1
  • 3Mazzoni A, Apolonio FM, Saboia VP, et al. Carbodiimide inactivation of MMPs and effect on dentin bonding[J].J Dent Res, 2014,93(3): 263 -268. 被引量:1
  • 4Mazzoni A, Angeloni V, Apolonio FM, et al. Effect of carbodiimide (EDC) on the bond stability of etch-and-rinse adhesive systems[J]. Dent Mater, 2013, 29( 10): 1040 -1047. 被引量:1
  • 5Bedran-Russo AK, Vidal CM, Dos Santos PH, et al. Long-term effect of carbodiimide on dentin matrix and resin-dentin bonds[J].J Biomed Mater Res B Appl Biomater , 2010, 94 ( 1 ) : 250 -255. 被引量:1
  • 6Nakabayashi N, Kojima K, Masuhara E. The promotion of adhesion by the infiltration of monomers into tooth substrates[J].J Biomed Mater Res, 1982, 16 (3) : 265 - 273. 被引量:1
  • 7Tezvergil-Mutluay A, Mutluay MM, Agee KA, et al. Carbodiimide cross-linking inactivates soluble and matrix-bound MMPs, in vitro[J].J Dent Res, 2012, 91(2): 192-196. 被引量:1
  • 8Bedran-Husso AK, Pereira PN, Duarte WR, et al. Application of crosslinkers to dentin collagen enhances tbe ultimate tensile strengtb[J].J Biomed Mater Res B Appl Biomater , 2007, 80(1): 268 -272. 被引量:1
  • 9Scheffel DL, HeblingJ, Scheffel RH, et al. Stabilization of dentin matrix after cross-linking treatments, in vitro[J]. Dent Mater, 2014,30(2): 227-233. 被引量:1
  • 10Liu Y, Tjaderhane L, Bresehi L, et al. Limitations in bonding to dentin and experimental strategies to prevent bond degradation[J].J Dent Res, 2011,90(8): 953 -968. 被引量:1
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