Skienhe Hasan, Abdou Ahmed, Matinlinna Jukka P, Ferrari Marco, Salameh Ziad
Department of Prosthodontics, Faculty of Dental Medicine, Lebanese University, Lebanon.
Department of Restorative Dentistry, Faculty of Dentistry, Universiti Malaya, Kuala Lumpur, Malaysia.
J Clin Exp Dent. 2025 Apr 1;17(4):e407-e415. doi: 10.4317/jced.62601. eCollection 2025 Apr.
This laboratory study aimed to investigate the influence of a novel surface treatment method, utilizing a low-fusing porcelain glaze layer, on pre-sintered zirconia and the adhesion with resin composite cement. The study employed a primer containing a silane coupling agent and 10-methacryloyloxydecyl dihydrogen phosphate (MDP) to enhance the bond between the zirconia and resin composite cement.
Zirconia blocks were sectioned, polished, and randomly divided into six groups based on surface treatment before sintering: Group CA50: Pre-sintered specimens were grit-blasted with 50 µm Al2O3 particles; Group CS25: Pre-sintered specimens were grit-blasted with 25 µm high-purity fused silica particles; Group B: Specimens similar to Group CA50 were sintered, glazed, and fired, followed by etching with 9.5% hydrofluoric acid (HF); Group C: Specimens similar to Group CA50 were sintered, glazed, and fired, followed by re-blasting with grit-blasted with 50 µm Al2O3 particles, Group D: Specimens similar to Group CS25 were sintered, glazed, and fired, followed by HF, Group E: Specimens in Group CS25 were sintered, glazed, and fired, followed by sandblasting with 50 µm Al2O3 particles. Microstructural analysis, surface roughness analysis, and shear bond strength testing (SBS) were conducted.
The surface treatment significantly increased the surface roughness with all surface treatments compared to CA50 and CS25. The shear bond strength of group C showed the highest significant SBS compared to all other groups.
Alumina sandblasting of the glazed zirconia as pretreatment of sintered zirconia can improve the bonding to silane primer and resin cement. Glass beads, Alumina blasting, Pre-sintered zirconia, Silane.
本实验室研究旨在探讨一种利用低熔点瓷釉层的新型表面处理方法对预烧结氧化锆及其与树脂复合水门汀粘结力的影响。该研究采用了一种含有硅烷偶联剂和10-甲基丙烯酰氧基癸基二氢磷酸酯（MDP）的底漆，以增强氧化锆与树脂复合水门汀之间的粘结。
将氧化锆块切割、抛光，并根据烧结前的表面处理随机分为六组：CA50组：用50μm Al2O3颗粒对预烧结试样进行喷砂处理；CS25组：用25μm高纯熔融石英颗粒对预烧结试样进行喷砂处理；B组：类似于CA50组的试样进行烧结、上釉和烧制，然后用9.5%氢氟酸（HF）蚀刻；C组：类似于CA50组的试样进行烧结、上釉和烧制，然后用50μm Al2O3颗粒再次喷砂处理；D组：类似于CS25组的试样进行烧结、上釉和烧制，然后用HF处理；E组：CS25组的试样进行烧结、上釉和烧制，然后用50μm Al2O3颗粒喷砂处理。进行了微观结构分析、表面粗糙度分析和剪切粘结强度测试（SBS）。
与CA50和CS25相比，所有表面处理均显著提高了表面粗糙度。与所有其他组相比，C组的剪切粘结强度显示出最高的显著SBS。
对烧结氧化锆进行釉面氧化铝喷砂预处理可改善与硅烷底漆和树脂水门汀的粘结。玻璃珠、氧化铝喷砂、预烧结氧化锆、硅烷。
