PDF(Pubmed)
Abstract：
This in vitro study was to evaluate the effect of different non-thermal atmospheric pressure plasma (NTP) on shear bond strength (SBS) between yttria-stabilized tetragonal zirconia polycrystal (Y-TZP) and self-adhesive resin cement. In this study, The Y-TZP specimens were divided into 4 groups according to the surface treatment methods as follows: Control (no surface treatment), Sb (Sandblasting), AP(argon NTP), and CP(20 % oxygen and 80 % argon combination NTP). Y-TZP specimens were randomly selected from each group to observe and test the following indexes: scanning electron microscope to observe the surface morphology; atomic force microscope to detect the surface roughness; contact angle detector to detect the surface contact angle; energy spectrometer to analyze the surface elements. Then, resin cement (Rely X-U200) was bonded to human isolated teeth with Y-TZP specimens to measure SBS. The results showed that for the SE test, the NTP group was significantly higher than the control group (p < 0.05). The results of the SBS test showed that the SBS values of the NTP group were significantly higher than those of the other groups, regardless of the plasma treatment (p < 0.05). However, there was no significant difference between groups AP and CP in a test of SBS (p > 0.05). This study shows that non-thermal atmospheric pressure plasma can improve the shear bond strength of Y-TZP by increasing the surface energy. The addition of oxygen ratio to argon is more favorable to increase the shear bond strength and is worth further investigation.
摘要：
这项体外研究旨在评估不同的非热大气压等离子体（NTP）对氧化钇稳定的四方氧化锆多晶（Y-TZP）与自粘树脂水泥之间的剪切粘结强度（SBS）的影响。在这项研究中,将Y-TZP试样按表面处理方法分为4组:对照(无表面处理),Sb（喷砂），AP(氩气NTP),和CP(20%氧气和80%氩气组合NTP)。每组随机选取Y-TZP试样进行下列指标的观察和测试:扫描电镜观察表面形貌;原子力显微镜检测表面粗糙度;接触角检测仪检测表面接触角;能谱仪分析表面元素。然后，用Y-TZP标本将树脂水泥（ReyX-U200）粘合到人的离体牙齿上以测量SBS。结果表明，对于SE测试，NTP组明显高于对照组(p<0.05)。SBS检验结果显示,NTP组的SBS值明显高于其他组,无论血浆处理（p<0.05）。然而,在SBS检验中，AP组和CP组之间没有显着差异（p>0.05）。这项研究表明，非热大气压等离子体可以通过增加表面能来提高Y-TZP的剪切结合强度。氧气与氩气的添加比例更有利于提高剪切粘结强度，值得进一步研究。
