El Gamal Ahmed, Medioni Etienne, Rocca Jean Paul, Fornaini Carlo, Muhammad Omid H, Brulat-Bouchard Nathalie
Micoralis EA 7354 Laboratory, University Côte d'Azur, Nice, France.
Mines ParisTech, Centre de Mise en Forme des Matériaux (CEMEF), CNRS-UMR 7635, Sophia Antipolis, France.
Lasers Med Sci. 2017 May;32(4):779-785. doi: 10.1007/s10103-017-2171-4. Epub 2017 Mar 9.
The purpose of this study is to determine the CO laser irradiation in comparison with sandblasting (Sb), hydrofluoric acid (Hf) and silane coupling agent (Si) on shear bond strength (SBS), roughness (Rg) and wettability (Wt) of resin cement to CAD/CAM ceramics. Sixty (CAD/CAM) ceramic discs were prepared and distributed into six different groups: group A, control lithium disilicate (Li); group B, control zirconia (Zr); group C, Li: CO/HF/Si; group D, Li: HF/Si; group E, Zr: CO/Sb/Si; group F, Zr: Sb/Si. Result showed significant difference between irradiated and non-irradiated in terms of shear bond strength for zirconia ceramics (p value = 0.014). Moreover, partial surface wettability for irradiated and non-irradiated ceramics. Irradiated surface demonstrated more rough surface in lithium disilicate than zirconia ceramics. CO irradiation could increase shear bond strength, surface roughness and wettability for both CAD/CAM ceramics.
本研究的目的是确定与喷砂（Sb）、氢氟酸（Hf）和硅烷偶联剂（Si）相比，CO激光照射对树脂水门汀与CAD/CAM陶瓷之间的剪切粘结强度（SBS）、粗糙度（Rg）和润湿性（Wt）的影响。制备了60个（CAD/CAM）陶瓷盘，并将其分为六个不同的组：A组，对照二硅酸锂（Li）；B组，对照氧化锆（Zr）；C组，Li：CO/HF/Si；D组，Li：HF/Si；E组，Zr：CO/Sb/Si；F组，Zr：Sb/Si。结果显示，氧化锆陶瓷在照射和未照射情况下的剪切粘结强度存在显著差异（p值=0.014）。此外，照射和未照射陶瓷的部分表面润湿性也有所不同。照射后的表面显示，二硅酸锂陶瓷比氧化锆陶瓷表面更粗糙。CO照射可提高两种CAD/CAM陶瓷的剪切粘结强度、表面粗糙度和润湿性。
