Bayraktar Ezgi T, Atali Pinar Y, Korkut Bora, Kesimli Ezgi G, Tarcin Bilge, Turkmen Cafer
Department of Restorative Dentistry, Faculty of Dentistry, Marmara University, Istanbul, Turkey.
Eur J Dent. 2021 Jul;15(3):481-487. doi: 10.1055/s-0041-1725577. Epub 2021 May 26.
This study was aimed to determine the effects of modeling resins on the surface microhardness of composites.
Six resin-based composites (Charisma Smart, Estellite Asteria, CeramX-One SphereTEC, Admira Fusion, Filtek Ultimate, and Clearfil Majesty Es-2) and three wetting agents (Modeling Liquid, Composite Primer, and Modeling Resin) were investigated. In all, 240 specimens were prepared, and wetting agents were applied prior to light curing in the experimental groups. After 24 hours, specimens were polished and Vickers microhardness (VHN) values were measured.
Shapiro-Wilk and two-way analysis of variance (ANOVA) were used for analyses ( < 0.05).
Both modeling resin and composites were determined to be effective factors ( < 0.001). The control group showed the highest VHN (70.37 ± 7.94), followed by Modeling Liquid (64.68 ± 12.07), Composite Primer (59.84 ± 6.33), and Modeling Resin (58 ± 3.52; < 0.001). Filtek Ultimate showed the highest VHN (76.62 ± 9.78), whereas Charisma Smart (58.87 ± 7.95), and Clearfil Majesty (67.27 ± 2.58) showed the lowest ( < 0.001). Clearfil Majesty-Modeling Liquid (46.62 ± 5.33) and Charisma Smart-Composite Primer (50.81 ± 0.39) combinations showed the lowest VHN, whereas Filtek Ultimate-control (87.15 ± 2.12) and Filtek Ultimate-Modeling Liquid (84.24 ± 3.11) showed the highest ( < 0.001).
All tested modeling resins decreased VHN value, and the amount of reduction varied among composites and wetting agents. It might be safer not to use wetting agents unless they are necessary.
本研究旨在确定造型树脂对复合材料表面显微硬度的影响。
研究了六种树脂基复合材料（卡瑞斯玛智能型、埃斯特利特星彩型、赛拉米克斯一号球形技术型、爱米拉融合型、3M Filtek至尊型和可乐丽美嘉Es - 2型）和三种湿润剂（造型液、复合底漆和造型树脂）。总共制备了240个试样，实验组在光固化前施加湿润剂。24小时后，对试样进行抛光并测量维氏显微硬度（VHN）值。
采用夏皮罗 - 威尔克检验和双向方差分析（ANOVA）进行分析（P < 0.05）。
造型树脂和复合材料均被确定为有效因素（P < 0.001）。对照组显示出最高的VHN（70.37 ± 7.94），其次是造型液（64.68 ± 12.07）、复合底漆（59.84 ± 6.33）和造型树脂（58 ± 3.52；P < 0.001）。3M Filtek至尊型显示出最高的VHN（76.62 ± 9.78），而卡瑞斯玛智能型（58.87 ± 7.95）和可乐丽美嘉（67.27 ± 2.58）显示出最低值（P < 0.001）。可乐丽美嘉 - 造型液（46.62 ± 5.33）和卡瑞斯玛智能型 - 复合底漆（50.81 ± 0.39）组合显示出最低的VHN，而3M Filtek至尊型 - 对照组（87.15 ± 2.12）和3M Filtek至尊型 - 造型液（84.24 ± 3.11）显示出最高值（P < 0.001）。
所有测试的造型树脂均降低了VHN值，且降低幅度在复合材料和湿润剂之间有所不同。除非必要，否则不使用湿润剂可能更安全。
