Microtensile Bond Strength Between Resin-Matrix CAD/CAM Ceramics and Resin Cement after Various Surface Modifications and Artificial Aging.

IF 2.5 3区医学 Q2 DENTISTRY, ORAL SURGERY & MEDICINE

Journal of Adhesive Dentistry Pub Date : 2021-06-05 DOI:10.3290/j.jad.b1367903

Constantinos Papadopoulos, Dimitrios Dionysopoulos, Kimon Pahinis, Elisabeth Koulaouzidou, Kosmas Tolidis

{"title":"Microtensile Bond Strength Between Resin-Matrix CAD/CAM Ceramics and Resin Cement after Various Surface Modifications and Artificial Aging.","authors":"Constantinos Papadopoulos, Dimitrios Dionysopoulos, Kimon Pahinis, Elisabeth Koulaouzidou, Kosmas Tolidis","doi":"10.3290/j.jad.b1367903","DOIUrl":null,"url":null,"abstract":"Purpose: To evaluate the effect of different surface modification methods on the microtensile bond strength (μTBS) of four resin-matrix CAD/CAM ceramics after artificial aging.Materials and methods: Specimens of four CAD/CAM materials (Shofu Block HC, Lava Ultimate, Brilliant Crios, and Vita Enamic) were prepared and divided into four groups. Each group received one of the following treatments: group 1 (INT): no surface modification; group 2: sandblasting with 29-μm Al2O3 particles (SB); group 3: hydrofluoric acid etching (9%) + silane (HF+Si); group 4: sandblasting with 30-μm particles of the CoJet system (CJ). The specimens of each group were luted together in pairs using resin cement (RelyX Ultimate). After one week of water storage (37°C), the sandwich specimens were sectioned into rectangular microspecimens and half of them were immediately subjected to μTBS testing, while the other half was tested after six months. Data were statistically analyzed using FFANOVA including the factors of material, treatment, and storage time, with α = 0.05.Results: After one week, the lowest μTBS was observed for INT, while the highest was found for either mechanical (SB and CJ) or chemical (HF+Si) treatments (p < 0.05). After six months, a significant decrease in μTBS was observed depending on treatment (p < 0.05), while artificial aging significantly influenced the μTBS of all experimental groups (p < 0.05). During the two storage periods, the failure type was mainly interfacial and was associated with the type of surface modification.Conclusion: After artificial aging, the μTBS appeared to depend on srface modification, while the parameter \"material\" did not influence the results. Consequently, adhesive strategies should be oriented towards surface modification techniques.","PeriodicalId":55604,"journal":{"name":"Journal of Adhesive Dentistry","volume":null,"pages":null},"PeriodicalIF":2.5000,"publicationDate":"2021-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"3","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Adhesive Dentistry","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.3290/j.jad.b1367903","RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"DENTISTRY, ORAL SURGERY & MEDICINE","Score":null,"Total":0}

引用次数: 3

Abstract

Purpose: To evaluate the effect of different surface modification methods on the microtensile bond strength (μTBS) of four resin-matrix CAD/CAM ceramics after artificial aging.

Materials and methods: Specimens of four CAD/CAM materials (Shofu Block HC, Lava Ultimate, Brilliant Crios, and Vita Enamic) were prepared and divided into four groups. Each group received one of the following treatments: group 1 (INT): no surface modification; group 2: sandblasting with 29-μm Al2O3 particles (SB); group 3: hydrofluoric acid etching (9%) + silane (HF+Si); group 4: sandblasting with 30-μm particles of the CoJet system (CJ). The specimens of each group were luted together in pairs using resin cement (RelyX Ultimate). After one week of water storage (37°C), the sandwich specimens were sectioned into rectangular microspecimens and half of them were immediately subjected to μTBS testing, while the other half was tested after six months. Data were statistically analyzed using FFANOVA including the factors of material, treatment, and storage time, with α = 0.05.

Results: After one week, the lowest μTBS was observed for INT, while the highest was found for either mechanical (SB and CJ) or chemical (HF+Si) treatments (p < 0.05). After six months, a significant decrease in μTBS was observed depending on treatment (p < 0.05), while artificial aging significantly influenced the μTBS of all experimental groups (p < 0.05). During the two storage periods, the failure type was mainly interfacial and was associated with the type of surface modification.

Conclusion: After artificial aging, the μTBS appeared to depend on srface modification, while the parameter "material" did not influence the results. Consequently, adhesive strategies should be oriented towards surface modification techniques.

查看原文本刊更多论文

树脂基CAD/CAM陶瓷与树脂水泥经各种表面改性和人工老化后的微拉伸粘结强度

目的:评价不同表面改性方法对4种树脂基CAD/CAM陶瓷人工老化后微拉伸结合强度(μTBS)的影响。材料与方法:制备四种CAD/CAM材料(Shofu Block HC、Lava Ultimate、Brilliant Crios、Vita Enamic)，并将其分为四组。每组采用1种治疗方法:1组(INT):无表面修饰;2组:29 μm Al2O3颗粒(SB)喷砂;第3组:氢氟酸蚀刻(9%)+硅烷(HF+Si);第4组:CoJet系统(CJ) 30 μm颗粒喷砂。各组标本采用树脂粘接(RelyX Ultimate)成对粘接。37℃蓄水1周后，将夹心试样切成矩形微试样，其中一半立即进行μTBS测试，另一半在6个月后进行测试。采用FFANOVA对数据进行统计学分析，包括材料、处理、保存时间等因素，α = 0.05。结果:1周后，INT处理的μTBS最低，机械处理(SB + CJ)和化学处理(HF+Si)的μTBS最高(p < 0.05);6个月后，不同处理组μTBS均显著降低(p < 0.05)，而人工老化对各实验组μTBS均有显著影响(p < 0.05)。在两个贮存期内，破坏类型主要为界面破坏，并与表面改性类型有关。结论:人工老化后，μTBS表现出依赖于表面修饰的特征，而“材料”参数对结果没有影响。因此，粘合剂策略应面向表面改性技术。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Journal of Adhesive Dentistry 医学-牙科与口腔外科

CiteScore

5.20

自引率

6.10%

发文量

审稿时长

6-12 weeks

期刊介绍： New materials and applications for adhesion are profoundly changing the way dentistry is delivered. Bonding techniques, which have long been restricted to the tooth hard tissues, enamel, and dentin, have obvious applications in operative and preventive dentistry, as well as in esthetic and pediatric dentistry, prosthodontics, and orthodontics. The current development of adhesive techniques for soft tissues and slow-releasing agents will expand applications to include periodontics and oral surgery. Scientifically sound, peer-reviewed articles explore the latest innovations in these emerging fields.