Effect of deproteinization with calcium hypochlorite on bond strength and hybrid layer formation of universal adhesives systems to eroded dentin

IF 3.2 3区材料科学 Q2 ENGINEERING, CHEMICAL

International Journal of Adhesion and Adhesives Pub Date : 2024-11-18 DOI:10.1016/j.ijadhadh.2024.103892

Gabriela Mariana Castro-Núñez , Aslhey Luz Alzamora-Perez , Maria Alejandra Gavidia-Herrera , Ana Lourdes Machaca-Apaza , Dannittsa Sibell Vargas-Cotacallapa , João Felipe Besegato , Milton Carlos Kuga , Wilfredo Gustavo Escalante-Otárola

{"title":"Effect of deproteinization with calcium hypochlorite on bond strength and hybrid layer formation of universal adhesives systems to eroded dentin","authors":"Gabriela Mariana Castro-Núñez , Aslhey Luz Alzamora-Perez , Maria Alejandra Gavidia-Herrera , Ana Lourdes Machaca-Apaza , Dannittsa Sibell Vargas-Cotacallapa , João Felipe Besegato , Milton Carlos Kuga , Wilfredo Gustavo Escalante-Otárola","doi":"10.1016/j.ijadhadh.2024.103892","DOIUrl":null,"url":null,"abstract":"<div><h3>Purpose</h3><div>To evaluate the microtensile bond strength and hybrid layer formation of universal adhesive systems applied to eroded dentin deproteinized with calcium hypochlorite.</div></div><div><h3>Material and methods</h3><div>Two hundred bovine teeth were sectioned, preconditioned with acid, and exposed to a 15-day acid and abrasive challenge. Specimens were divided into five groups (n = 40): deproteinization with calcium hypochlorite at 1 %, 2.5 %, and 5 % concentrations, and two controls (distilled water or 2.5 % sodium hypochlorite). Each group of 20 specimens was treated with either Solare Universal Bond or Scotchbond Universal adhesive systems and light-cured with LED. Bond strength was tested using microtensile tests. Adhesive interfaces were analyzed for failure modes and hybrid layer formation using scanning electron microscopy, and EDX analysis was used to determine elemental composition.</div></div><div><h3>Results</h3><div>Calcium hypochlorite (1 % and 2.5 %) significantly improved bond strength with both adhesives compared to controls (p < 0.05). Solare Universal Bond showed mainly adhesive fractures, while Scotchbond Universal had more mixed fractures. The 1 % and 2.5 % calcium hypochlorite treatments enhanced hybrid layer extension with Solare Universal Bond (p < 0.05), and matched distilled water with Scotchbond Universal (p < 0.05). Sodium hypochlorite resulted in a thinner hybrid layer (p < 0.05). EDX analysis showed a decrease in Silicon with higher deproteinization concentrations.</div></div><div><h3>Conclusion</h3><div>The bonding effects of deproteinizing eroded dentin with calcium hypochlorite depend on the concentration and adhesive system used. Deproteinization with 5 % calcium hypochlorite improved both bond strength and hybrid layer formation for Solare Universal Bond, while 1 % and 2.5 % concentrations enhanced bond strength for Scotchbond Universal without impacting hybrid layer thickness, which did not adversely affect bond strength.</div></div>","PeriodicalId":13732,"journal":{"name":"International Journal of Adhesion and Adhesives","volume":"136 ","pages":"Article 103892"},"PeriodicalIF":3.2000,"publicationDate":"2024-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Journal of Adhesion and Adhesives","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0143749624002744","RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENGINEERING, CHEMICAL","Score":null,"Total":0}

引用次数: 0

Abstract

Purpose

To evaluate the microtensile bond strength and hybrid layer formation of universal adhesive systems applied to eroded dentin deproteinized with calcium hypochlorite.

Material and methods

Two hundred bovine teeth were sectioned, preconditioned with acid, and exposed to a 15-day acid and abrasive challenge. Specimens were divided into five groups (n = 40): deproteinization with calcium hypochlorite at 1 %, 2.5 %, and 5 % concentrations, and two controls (distilled water or 2.5 % sodium hypochlorite). Each group of 20 specimens was treated with either Solare Universal Bond or Scotchbond Universal adhesive systems and light-cured with LED. Bond strength was tested using microtensile tests. Adhesive interfaces were analyzed for failure modes and hybrid layer formation using scanning electron microscopy, and EDX analysis was used to determine elemental composition.

Results

Calcium hypochlorite (1 % and 2.5 %) significantly improved bond strength with both adhesives compared to controls (p < 0.05). Solare Universal Bond showed mainly adhesive fractures, while Scotchbond Universal had more mixed fractures. The 1 % and 2.5 % calcium hypochlorite treatments enhanced hybrid layer extension with Solare Universal Bond (p < 0.05), and matched distilled water with Scotchbond Universal (p < 0.05). Sodium hypochlorite resulted in a thinner hybrid layer (p < 0.05). EDX analysis showed a decrease in Silicon with higher deproteinization concentrations.

Conclusion

The bonding effects of deproteinizing eroded dentin with calcium hypochlorite depend on the concentration and adhesive system used. Deproteinization with 5 % calcium hypochlorite improved both bond strength and hybrid layer formation for Solare Universal Bond, while 1 % and 2.5 % concentrations enhanced bond strength for Scotchbond Universal without impacting hybrid layer thickness, which did not adversely affect bond strength.

查看原文本刊更多论文

次氯酸钙脱蛋白对侵蚀牙本质通用粘合剂系统的粘接强度和混合层形成的影响

材料和方法对 200 颗牛牙进行切片、酸预处理，并进行为期 15 天的酸和磨料挑战。标本分为五组（n = 40）：用浓度为 1 %、2.5 % 和 5 % 的次氯酸钙进行去蛋白处理，以及两个对照组（蒸馏水或 2.5 % 次氯酸钠）。每组 20 个试样用 Solare 通用粘合剂或 Scotchbond 通用粘合剂系统处理，并用 LED 光固化。粘合强度采用微拉伸试验进行测试。结果与对照组相比，两种粘合剂的次氯酸钙（1 % 和 2.5 %）都能显著提高粘合强度（p < 0.05）。Solare 通用粘合剂主要出现粘合断裂，而 Scotchbond 通用粘合剂则出现更多混合断裂。1 % 和 2.5 % 次氯酸钙处理可增强 Solare Universal Bond 的混合层扩展（p < 0.05），而蒸馏水处理可与 Scotchbond Universal 匹配（p < 0.05）。次氯酸钠会导致杂化层变薄（p < 0.05）。EDX 分析表明，随着脱蛋白浓度的增加，硅的含量也在减少。结论用次氯酸钙脱蛋白腐蚀牙本质的粘接效果取决于所使用的浓度和粘接剂系统。用 5% 的次氯酸钙进行脱蛋白处理可提高 Solare Universal Bond 的粘接强度和混合层的形成，而 1% 和 2.5% 的浓度可提高 Scotchbond Universal 的粘接强度，但不会影响混合层的厚度，混合层的厚度也不会对粘接强度产生不利影响。

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

International Journal of Adhesion and Adhesives 工程技术-材料科学：综合

CiteScore

6.90

自引率

8.80%

发文量

200

审稿时长

8.3 months

期刊介绍： The International Journal of Adhesion and Adhesives draws together the many aspects of the science and technology of adhesive materials, from fundamental research and development work to industrial applications. Subject areas covered include: interfacial interactions, surface chemistry, methods of testing, accumulation of test data on physical and mechanical properties, environmental effects, new adhesive materials, sealants, design of bonded joints, and manufacturing technology.