Expansion of Nanotechnology for Dentistry: Effect of Colloidal Platinum Nanoparticles on Dentin Adhesion Mediated by 4-META/MMA-TBB
Expansion of Nanotechnology for Dentistry: Effect of Colloidal Platinum Nanoparticles on Dentin Adhesion Mediated by 4-META/MMA-TBB
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DOI：
10.3290/j.jad.a19818
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发表时间：
2011-10-01
影响因子：
3.3
通讯作者：
Sano, Hidehiko
中科院分区：
文献类型：
--
作者：
Hoshika, Shuhei;Nagano, Futami;Sano, Hidehiko
目的：研究不同浓度的纳米铂（CPN）对牙本质与4-Meta/MMA-TBB树脂粘结强度的影响。咬合牙本质切片通过研磨每个牙齿的咬合面并在自来水下用600粒度的碳化硅纸抛光来制备。一个控制组和四个实验组a）牙本质表面用10-3溶液处理，然后用水冲洗，随后用手工混合的4 META/MMA-TBB树脂粘合丙烯酸棒（Super-Bond C&B，Sun Medical）（对照）; B）用10-3蚀刻溶液处理牙本质表面，然后用水冲洗并施用CPN（100%或10%）作为底漆溶液60秒并用水冲洗20秒，然后将丙烯酸棒与Super-Bond C&B粘合（Etch-CPN [100%或10%]）; c）用CPN处理的牙本质表面（100%或10%）60秒，用水冲洗20秒，然后施加10-3溶液，然后是用Super-Bond C&B（CPN-Etch [100%或10%]）粘合的丙烯酸棒。在37 ℃水中储存后，将试样切成梁，（横截面积：1 mm（2）），在1 mm/min的十字头速度下进行微拉伸粘结强度测试。使用Games-Howell方法分析数据结果：与对照相比，Etch-CPN（100）、CPN-Etch（100）和CPN-Etch（10）显示出显著更高的粘结强度。当使用10%CPN时，表现出最高的粘结强度。4 META/MMA-TBB树脂的粘结强度约为CPN application.Conclusion的两倍：本研究的结果表明，较高的粘结强度时，获得较低浓度的CPN处理牙本质。需要进一步评估以优化条件，如应用时间和冲洗时间。
Purpose: To investigate the effect of Colloidal Platinum Nanoparticles (CPN) on the bond strength between dentin and 4-META/MMA-TBB resin using different concentrations of CPN.Materials and Methods: Twenty-five extracted human third molars were stored in 0.5% chloramine T. The occlusal dentin slices were prepared by grinding occlusal surfaces of each tooth and polishing with 600-grit silicon carbide paper under running water. One control and four experimental groups (2 specimens per group) were used as follows: a) dentin surfaces treated with 10-3 solution, followed by rinsing with water and subsequently an acrylic rod bonded with hand-mixed 4META/MMA-TBB resin (Super-Bond C&B, Sun Medical) (control); b) dentin surfaces treated with 10-3 etching solution, followed by rinsing with water and application of CPN (100% or 10%) as a primer solution for 60 s and rinsed with water for 20 s, then an acrylic rod bonded with Super-Bond C&B(Etch-CPN [100% or 10%]); c) dentin surfaces treated with CPN (100% or 10%) for 60 s, rinsed with water for 20 s, followed by application of 10-3 solution, then an acrylic rod bonded with Super-Bond C&B (CPN-Etch [100% or 10%]). After storage in 37 C water, specimens were sectioned into beams (cross-sectional area: 1 mm(2)) for microtensile bond strength testing at a crosshead speed of 1mm/min. The data were analyzed using the Games-Howell method (p < 0.05; n = 15).Results: Etch-CPN (100), CPN-Etch(100) and CPN-Etch (10) showed significantly higher bond strengths compared to the control. When using 10% CPN, the highest bond strength was demonstrated. The bond strength of 4META/MMA-TBB resin was approximately doubled by CPN application.Conclusion: The results of this study showed that higher bond strengths are obtained when treating dentin with a lower concentration of CPN. Further evaluation to optimize conditions such as the application time and rinsing time are required.