Stomatology Research Center, School of Stomatology, China Medical University.
Orthodontic Department, School of Stomatology, China Medical University.
Dent Mater J. 2019 Jun 1;38(3):452-463. doi: 10.4012/dmj.2018-091. Epub 2019 Mar 26.
Laser scanning is one of the methods that can be used for surface treatments of zirconia. Application of the laser to the surface of zirconia has diverse effects, depending on the type of laser. A carbon dioxide (CO) laser has high irradiation power and can alter the surface properties. This study investigated the surface coating of zirconia as a core material that subsequently coated with a veneering ceramic (v-c) material. This study compared laser scanning and conventional sintering processes. Various properties including surface topography, interface evaluation, phase transformation, elemental compositions, failure mode patterns, and contact angle were examined through X-ray diffractometry (XRD), scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS) analyses. Results were confirmed that the bond strength between the v-c and the substrate recorded through laser scanning was higher than that determined through conventional sintering.
激光扫描是一种可用于氧化锆表面处理的方法。激光应用于氧化锆表面会产生多种效果，具体取决于激光的类型。二氧化碳（CO）激光具有较高的辐照功率，可以改变表面性能。本研究探讨了将氧化锆作为核心材料进行表面涂层，然后再涂覆饰面陶瓷（v-c）材料的方法。本研究比较了激光扫描和常规烧结工艺。通过 X 射线衍射仪（XRD）、扫描电子显微镜（SEM）和能谱分析（EDS）分析，研究了表面形貌、界面评价、相转变、元素组成、失效模式图案和接触角等各种性能。结果证实，通过激光扫描记录的 v-c 与基底之间的结合强度高于通过常规烧结确定的结合强度。
