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目的:通过拉伸强度检测,研究冷热循环对载银纳米软衬材料粘结强度的影响。方法:A-对照组组:10块载银纳米软衬—树脂复合体;B-复合体老组:10块载银纳米软衬—树脂复合体,在冷热循环仪中循环40000次;C-基托树脂老化组:10对热凝树脂块冷热循环仪中循环40000次后,再同A组制成载银纳米软衬—树脂复合体10块。结果:A组与B组拉伸强度(MPa)分别为4.1554±0.4410和3.6622±0.6174(P>0.05),试件断裂模式以内聚性破坏为主。C组的拉伸强度值(MPa)为2.8839±069309(与A、B两组相比较得出P<0.05),粘接性破坏是C组的主要破坏模式。结论:显示冷热循环对载银纳米软衬材料的粘结强度无较大影响。
Abstract：Objective: In this study,the tensile strength testing research on the impact of thermal cycling silver nano soft liner bond strength. Metnod: A-control group: 10 nanometer soft silver lining-resin composite; B-comples old group: 10 nanometer soft silver lining-resin composite,hot and cold cycle cycler 40000 times; C-base resin aging: 10 pairs of thermosetting resin mass of hot and cold cycl ecycler 40000 times,and then made into silver nano-resin composite 10. Result: Group A and group B tensile strength( MPa)were 4. 1554 ± 0. 4410 and 3. 6622 ± 0. 6174( P > 0. 05),specimen fracture modes in a cohesive break of the main bad. Group C tensile strength( MPa) was 2. 8839 ± 0. 9309( compared with the previous two groups P < 0. 05),specimen fracture mode to destroy the main adhesive. Conclusion: It showed no significant effect on thermal cycling silver nano tensile strength of soft liner.
[1]Mese A,Guzel KG.Effort of storage duration on tne hardness and tensile bond strength of silicone-and acrylic resin-based resilient denture liners to a processed denture base acrylic resin[J].J Prosthet Dent,2008,99(2):153-159.
[2]Wady AF,Machado AL,Zucolotto V,et al.Evaluation of Candida albicans adhesion and biofilm formation on a denture base acrylic resin containing silver nanoparticles[J].J Appl Microbiol,2012,112(6):1163-1172.
[3]Andreza Dayrell,Jessica Takahashi,Guiherme Valverde,et al.Effect of sealer coating on mechanical and physical properties of permanent soft lining materials.Gerodontol,2012,29(2):401.
[4]Crum RJ,et al.Clinical use of a resilient mandibular denture[J].J Am Dent Assoc,1971,83:1093.
[5]Dallas P,Sharma VK,Zboril R.Silver polymeric nanocomposites as advanced antimicrobial agents:classification,synthetic paths,applications,and persp ectives[J].Adv Colloid Interface Sci,2011,166(1-2):119-135.
[6]Chaloupka K,Malam Y,Seifalian AM.Nanosilver as a new generation of nanoproduct in biomedical applications[J].Trends in biotechnology,2010,28(11):580-586.
[7]佘文君,张富强.6种纳米级载银无机抗菌剂对口腔病原菌的抗菌活性比较[J].上海口腔医学,2003,12(5):356-358.
[8]任艳云,李斌,石兰.载银纳米二氧化钛义齿基托材料的体外细胞毒性研究[J].江西医学院学报,2009,49(12):1-3,6.
[9]肖月,佟汝佳,曹香林,等.两种纳米无机抗菌剂对义齿软衬材料机械性能的影响[J].口腔医学研究,2014,30(5):411-413.
[10]Minami H,Suzuki S,Ohashi H,et al.Effect of surface treatment on the bonding of an autopolymerizing soft denture liner to a denture base resin[J].Int J Prosthodont,2004,17(3):297-301.
[11]Gale M,Darvell BW.Thermal cycling procedures for laboratory testing of dental restorations[J].JDent,1999,27(2):89-99.
[12]Kawano F,Dootz ER,Koran A 3rd,et al.Comparison of bond strength of six soft denture liners to denture base resin[J].J Prosthet Dent,1992,68(2):368-371.
基本信息:
DOI：
中图分类号:R783.1
引用信息:
[1]李翠梅,侯玉泽,侯玉一等.冷热循环对载银纳米软衬材料性能的相关研究[J].微量元素与健康研究,2017,34(03):1-3.
基金信息:
佳木斯大学研究生科技创新项目(YM2016-077)