口腔疾病防治2018，Vol.26Issue(2)：95-98,4.DOI:10.12016/j.issn.2096-1456.2018.02.005
Er:YAG激光照射对可切削二硅酸锂增强型玻璃陶瓷粘接性能的影响
The effect of Er: YAG laser irradiation on bonding properties of IPS e.max CAD ceramics
摘要
Abstract
Objective To investigate different Er:YAG laser power settings on the bonding properties of IPS e.max CAD ceramics. Methods 96 IPS e.max CAD ceramics blocks (5 mm × 5 mm × 5 mm) were prepared and randomly di-vided into 8 groups (n=12), the untreated blocks served as the control, while one of the experimental groups was treat-ed with 4.5%HF for 20 seconds, six remaining test group (C、D、E、F、G、H) were treated with different Er:YAG laser power settings:100 mJ、200 mJ、300 mJ、400 mJ、500 mJ and 600 mJ. Morphology of the ceramic surface was observed by atomic force microscopy and its shear bond strength (SBS) was tested. Results Higher shear bond strength values were found in group C-H compared to group B, the highest is group F (24.12 ± 1.91) MPa. The difference was statistical-ly significant. The atomic force microscope observation of the surface structure showed that the control group was smooth and flat, and the HF-like etching group formed a uniform needle-like convex structure. The laser group gradual-ly formed a regularly arranged cylindrical convex structure, in which the surface of the G and H groups was damaged. Conclusion The Er:YAG laser power settings of 400 mJ can be used as an effective pretreatment method before bond-ing of IPS e.max CAD ceramic.关键词
Er:YAG激光/玻璃陶瓷/粘接强度/原子力显微镜/微观形貌Key words
Er:YAG laser/IPS e.max CAD/Bonding strength/Atomic force microscope/Microphology引用本文复制引用
侯晔坡,沈仁泽,陈路沅,陈艺,江颖彤,李菁梅,高杰..Er:YAG激光照射对可切削二硅酸锂增强型玻璃陶瓷粘接性能的影响[J].口腔疾病防治,2018,26(2):95-98,4.基金项目
广东省科技计划项目(2014A020211017) （2014A020211017）
