Department of Prosthodontics, School of Stomatology, Tongji University, Shanghai, P.R. China.
Dent Mater J. 2010 Nov;29(6):731-7. doi: 10.4012/dmj.2009-106. Epub 2010 Nov 19.
The purpose of this study was to evaluate the effect of carbon dioxide laser irradiation on the performance of silane coupling agent as an adhesion promoter. The carbon dioxide laser used in this study was Opelaser 03S II, which irradiated the silane coupling agent applied on the adhesive surface of porcelain. Before and after thermal cycling, shear bond strength was measured using a universal testing machine. Without primer treatment, most of the specimens failed adhesively before reaching the end of the thermal cycling period. For the specimens irradiated with carbon dioxide laser after primer treatment, their shear bond strengths before and after thermal cycling were higher than those treated with primer only -with a significantly pronounced difference between these two groups especially after thermal cycling. Therefore, a combined surface treatment which involved silane application followed by laser treatment was feasible and efficacious for chairside porcelain repair.
本研究旨在评估二氧化碳激光照射对硅烷偶联剂作为黏附促进剂性能的影响。本研究中使用的二氧化碳激光为 Opelaser 03S II，它辐照在瓷黏附表面应用的硅烷偶联剂。在热循环前后，使用万能试验机测量剪切黏附强度。未经底涂剂处理，大多数试件在达到热循环周期结束前已发生黏附性失效。对于经底涂剂处理后再经二氧化碳激光辐照的试件，其热循环前后的剪切黏附强度均高于仅经底涂剂处理的试件——这两组之间的差异尤其在热循环后显著。因此，硅烷应用后再进行激光处理的联合表面处理对于椅旁瓷修复是可行且有效的。
