Buttacheen Pummarate, Wongkamhaeng Kan, Palanuwech Mali
Department of Conservative Dentistry and Prosthodontics, Faculty of Dentistry, Srinakharinwirot University, 114 Sukhumvit 23 Rd, Bangkok, 10110, Thailand.
Division of Prosthodontics, Faculty of Dentistry, Thammasat University, Pathum Thani, 12120, Thailand.
BMC Oral Health. 2025 May 27;25(1):815. doi: 10.1186/s12903-025-06240-7.
The purpose of this in vitro study was to investigate the shear bond strength of high translucent monolithic zirconia and titanium alloy (Ti6Al4V) after various surface treatments using resin cement.
Ninety Ti6Al4V specimens were randomly allocated into six groups (n = 15 per group): untreated titanium (CT; control), 50-µm alumina airborne-particle abrasion (AB), 9.5% hydrofluoric acid (HF), anodization (AN), AB followed by AN (AB-AN), and HF followed by AN (HF-AN). Representative specimen from each group was examined using a scanning electron microscope and laser confocal microscopy. The specimens were bonded with 50-µm alumina air-abraded high translucent monolithic zirconia specimen using 10-methacryloyloxydecal dihydrogen phosphate (10-MDP)-containing primer and 10-methoxyl methyl methacrylate (MMA)-based resin cement. The failure mode of was classified using a stereomicroscope. Results were analyzed by one-way ANOVA with Tukey's adjustment for multiple comparisons (p < 0.05).
The mean bond strength of AB (36.9 ± 1.6 MPa) and HF (32.5 ± 3.4 MPa) groups were statistically significantly higher than other groups (p < 0.05). The AN group showed the lowest bond strength (29.55 ± 3.62 MPa); however, there was no significant difference between CT, AN, AB-AN, and HF-AN. The stereomicroscopic analysis revealed that the AN, AB-AN, and HF-AN groups predominantly showed mixed failure modes.
The surface treatment of Ti6Al4V with either 50-µm alumina airborne-particle abrasion or 9.5% hydrofluoric acid improved the bond strength between Ti6Al4V and high translucent monolithic zirconia. Anodization did not improve the bond strength, regardless of the surface treatments.
本体外研究旨在探讨经各种表面处理后的高透明度整体式氧化锆与钛合金（Ti6Al4V）使用树脂水门汀后的剪切粘结强度。
将90个Ti6Al4V样本随机分为六组（每组n = 15）：未处理的钛（CT；对照组）、50-μm氧化铝空气颗粒研磨（AB）、9.5%氢氟酸（HF）、阳极氧化（AN）、AB后接AN（AB-AN）以及HF后接AN（HF-AN）。使用扫描电子显微镜和激光共聚焦显微镜对每组代表性样本进行检查。使用含10-甲基丙烯酰氧基癸基二氢磷酸酯（10-MDP）的底漆和基于10-甲氧基甲基丙烯酸甲酯（MMA）的树脂水门汀将样本与50-μm氧化铝空气研磨的高透明度整体式氧化锆样本粘结。使用体视显微镜对失效模式进行分类。结果通过单因素方差分析及Tukey多重比较校正进行分析（p < 0.05）。
AB组（36.9 ± 1.6 MPa）和HF组（32.5 ± 3.4 MPa）的平均粘结强度在统计学上显著高于其他组（p < 0.05）。AN组显示出最低的粘结强度（29.55 ± 3.62 MPa）；然而，CT、AN、AB-AN和HF-AN组之间无显著差异。体视显微镜分析显示，AN、AB-AN和HF-AN组主要表现为混合失效模式。
用50-μm氧化铝空气颗粒研磨或9.5%氢氟酸对Ti6Al4V进行表面处理可提高Ti6Al4V与高透明度整体式氧化锆之间的粘结强度。无论表面处理如何，阳极氧化均未提高粘结强度。
