Effect of Addition of Dimethyl Sulfoxide to Simplified Adhesives on Dentin Bond Durability after Three Years of Water Storage.

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

Journal of Adhesive Dentistry Pub Date : 2021-04-07 DOI:10.3290/j.jad.b1079585

Anna Luiza Szesz, Graça de Maria Abreu Pereira, Fabiana Suelen Figuerêdo de Siqueira, Andres Felipe Millan Cardenas, Matheus C Bandeca, Ana Armas-Vega, Alessandra Reis, Alessandro D Loguercio

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引用次数: 6

Abstract

Purpose: To evaluate the effect of inclusion of two dimethyl sulfoxide (DMSO) concentrations in simplified etch-and-rinse adhesives on dentin bonding durability after three years of water storage.

Materials and methods: Forty-two caries-free third molars were divided into six experimental groups (n = 7) according to the following factors: 1) adhesive (Adper Single Bond 2 [SB], 3M Oral Care; Prime&Bond 2.1 [PB], Dentsply Sirona); 2) concentration of DMSO (control group: 0.0% DMSO; addition of 0.2% DMSO [0.2] and 2% DMSO [2.0]). After completing restoration, specimens were stored in water (37°C) for 24 h, sectioned into adhesive-dentin sticks (0.8 mm2), tested for microtensile bond strength (µTBS) at 0.5 mm/min, and examined for nanoleakage (NL) using SEM immediately thereafter or after three years of water storage. Data were subjected to a three-way repeated-measures ANOVA and Tukey's test (α = 0.05) for each property evaluated.

Results: After three years of water storage, for both adhesives, the incorporation of 2% DMSO maintained the µTBS when compared to immediate µTBS (p > 0.05). In general, SB resulted in a statistically significantly higher mean of µTBS compared to PB, independent of the DMSO concentration after water storage (p < 0.05). Furthermore, the amount of NL was lower and practically limited to the hybrid layer given the concentrations of 0.2% and 2% DMSO for both tested adhesives after three years.

Conclusion: The incorporation of DMSO in simplified etch-and-rinse adhesives maintains the long-term stability of the dentin bond.

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简化胶粘剂中添加二甲亚砜对牙本质保水三年粘结力的影响。

目的:To评估两种dimethyl亚砜(DMSO) concentrations在简化蚀刻冲洗胶粘剂中对牙本质的影响bonding在水储存三年后的耐久性。材料与方法:42颗无龋第三磨牙根据以下因素分为6个实验组(n = 7): 1)粘接剂(Adper Single Bond 2 [SB]， 3M Oral Care;Prime&Bond 2.1 [PB]， Dentsply Sirona);2) DMSO浓度(对照组:0.0% DMSO;加入0.2% DMSO[0.2]和2% DMSO[2.0])。修复完成后，将标本在水中(37°C)保存24小时，切片成adhesive-dentin棒(0.8 mm2)，以0.5 mm/min的速度测试微拉伸粘结强度(µTBS)，然后立即或在水储存三年后使用SEM测试纳米泄漏(NL) examined。对评估的各项数据进行三向重复测量方差分析和Tukey检验(α = 0.05)。结果:两种胶粘剂在水储存三年后，与直接加入的µTBS相比，加入2% DMSO维持了µTBS (p > 0.05)。总的来说，与储存水后的DMSO浓度无关，SB导致的µTBS平均值显著高于PB (p < 0.05)。此外，考虑到三年后两种测试粘合剂的DMSO浓度分别为0.2%和2%，NL的含量较低，实际上仅限于杂化层。结论:DMSO掺入简化的蚀刻-冲洗粘接剂可以维持牙本质结合的长期稳定性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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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.