机构：[1]Medical Engineering Center, Xiangya Hospital of Central South University, Changsha, PR China[2]Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, PR China[3]Department, Xiangya Hospital of Central South University, Changsha, PR China[4]Tianjin Stomatological hospital, Nankai University, Tianjin, PR China[5]School of Metallurgy and Environment, Central South University, Changsha, PR China[6]chool of Metallurgy and Environment, Central South University, Changsha, PR China[7]Department of Biomaterials and Biomimetics, College of Dentistry, New York University, New York, NY, USA
Purpose: To investigate the effects of grit blasting, acidic or alkaline/heat treatments, and metal primer application on the shear bond strength (SBS) of resin cement to machined commercially pure titanium (CP-Ti). Materials and Methods: Titanium plates were machined and received one of the following treatments: grit-blasting (GB), or grit-blasting followed by either acidic treatment (GB/AC) or alkaline/heat treatment (GB/AH). The specimens were randomly divided into 4 groups and treated with Rely X Ceramic Primer (RCP), Z Prime Plus (ZPP), and Alloy Primer (ALP), or without primer as the control. The pairs of titanium plates were cemented together with the Rely X Unicem cement. SBS was measured before and after thermocycling between 5 degrees C and 55 degrees C for 5000 cycles. Results: SEM observation showed that honeycomb-shaped pores formed on the surface of machined CP-Ti after GB/AC treatment, whereas a uniform net-like pattern formed after GB/AH treatment. In descending order, the surface roughness was GB, GB/AC, and GB/AH. The GB/AH group showed the highest SBS among all the treatments. As for primers, ALP group showed the highest SBS, while the RCP group showed the lowest. GB followed by ALP presented the highest SBS. Conclusion: A fine, uniform network structure was formed on the surface of CP-Ti following GB/AH treatment, providing an effective micromechanical interlocking mechanism for resin bonding. At the same time, after AH treatment, the -OH formed on the surface of the machined CP-Ti triggered a chemical reaction with the acid monomers in the resin adhesives, creating a chemical bond. As a result, GB/AH treatment significantly improved the bond strength relative to GB/AC treatment. In addition, ALP treatment facilitated the formation of hydrogen bonds, which further improved the chemical bond strength. Finally, the combination of the effects mentioned above resulted in the most robust bond between machined CP-Ti and the resin adhesives.
基金：
Natural Science Foundation of
Hunan Province, China (Grant No. 2012FJ3124). YZ would like to
thank the United States National Institutes of Health, National Institute
of Dental and Craniofacial Research (Grant No. R01DE017925
and Grant No. R01DE026772) and the International Congress of
Oral Implantologists (Implant Dentistry Research and Education
Foundation Grant) for their support.
第一作者机构：[1]Medical Engineering Center, Xiangya Hospital of Central South University, Changsha, PR China
通讯作者：
通讯机构：[5]School of Metallurgy and Environment, Central South University, Changsha, PR China[*1]School of Metallurgy and Environment, Central South University, Changsha 410083, PR China
推荐引用方式(GB/T 7714)：
Cao Yang,Guo Yan-Yang,Chen Lei,et al.Effects of Different Surface Treatments on Bond Strength of Resin Cement to Machined Pure Titanium[J].JOURNAL OF ADHESIVE DENTISTRY.2019,21(5):401-411.doi:10.3290/j.jad.a43182.
APA：
Cao, Yang,Guo, Yan-Yang,Chen, Lei,Han, Jing,Tong, Hui...&Zhang, Yu.(2019).Effects of Different Surface Treatments on Bond Strength of Resin Cement to Machined Pure Titanium.JOURNAL OF ADHESIVE DENTISTRY,21,(5)
MLA：
Cao, Yang,et al."Effects of Different Surface Treatments on Bond Strength of Resin Cement to Machined Pure Titanium".JOURNAL OF ADHESIVE DENTISTRY 21..5(2019):401-411
