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Iodonium salt incorporation in dental adhesives and its relation with degree of conversion, ultimate tensile strength, cell viability, and oxidative stress.
Clinical Oral Investigations ( IF 3.1 ) Pub Date : 2018-07-02 , DOI: 10.1007/s00784-018-2527-6
Camila Perelló Ferrúa 1, 2 , Fernanda Barbosa Leal 1 , Marta de Oliveira Gazal 2 , Gabriele Cordenonzi Ghisleni 2 , Rodrigo Varella de Carvalho 3 , Flávio Fernando Demarco 1 , Fabrício Aulo Ogliari 1, 4 , Fernanda Nedel 2
Affiliation  

OBJECTIVE The aim of this study was to evaluate the degree of conversion, ultimate tensile strength, cell viability, and oxidative stress of two different ternary initiation systems, using two photoinitiation polymerization times. METHODS The groups investigated were camphorquinone (CQ); CQ and diphenyleneiodonium hexafluorophosphate (DPI); CQ and ethyl 4-dimethylamine benzoate (EDAB); and CQ, EDAB, and DPI, with EDAB in high and low concentration. To assess the degree of conversion (DC) and the ultimate tensile strength (UTS), a real-time Fourier transform infrared spectroscopy and a universal test machine Emic DL-500 were used, respectively. Cell viability and oxidative stress were evaluated by MTT (3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide), superoxide dismutase (SOD), total sulfhydryl (SH) content, and thiobarbituric acid reactive species (TBARS) formation assays. RESULTS Slight lower cell viability was shown when DPI was associated with high concentrations of EDAB; this reduction seemed to be attenuated when lower concentrations of EDAB were used. When EDAB and DPI were associated, no oxidative damage was shown. The degree of conversion was increased in the ternary systems (CQ + EDAB lower concentration + DPI) group, which did not affect the UTS, cytotoxicity, and oxidative stress parameters. The polymerization time did not affect cell viability, total SH, and TBARS; however, a slight increase was shown in SOD levels. CLINICAL RELEVANCE Our study emphasizes the relevance of incorporating the third element-iodonium salt-in a binary adhesive systems composed exclusively of CQ and EDAB.

中文翻译:

牙合剂中掺入的碘鎓盐及其与转化度,极限抗张强度,细胞活力和氧化应激的关系。

目的本研究的目的是使用两个光引发聚合时间来评估两个不同的三元引发体系的转化度,极限抗张强度,细胞活力和氧化应激。方法所调查的组为樟脑醌(CQ)。CQ和六氟磷酸二苯撑碘鎓(DPI); CQ和4-二甲胺苯甲酸乙酯(EDAB); CQ,EDAB和DPI,以及高和低浓度的EDAB。为了评估转化率(DC)和极限拉伸强度(UTS),分别使用了实时傅里叶变换红外光谱和通用测试机Emic DL-500。用MTT(3-(4,5-二甲基噻唑-2-基)-2,5-二苯基四唑溴化物),超氧化物歧化酶(SOD),总巯基(SH)含量评估细胞活力和氧化应激 和硫代巴比妥酸反应物种(TBARS)的形成分析。结果当DPI与高浓度的EDAB相关时,细胞活力降低。当使用较低浓度的EDAB时,这种减少似乎减弱了。当EDAB和DPI结合时,没有显示出氧化损伤。三元系统(CQ + EDAB较低浓度+ DPI)组的转化度增加,但不影响UTS,细胞毒性和氧化应激参数。聚合时间不影响细胞活力,总SH和TBARS;但是,SOD含量略有增加。临床相关性我们的研究强调了在仅由CQ和EDAB组成的二元胶粘剂体系中掺入第三种元素碘盐的相关性。结果当DPI与高浓度的EDAB相关时,细胞活力降低。当使用较低浓度的EDAB时,这种减少似乎减弱了。当EDAB和DPI结合时,没有显示出氧化损伤。三元系统(CQ + EDAB较低浓度+ DPI)组的转化度增加,但不影响UTS,细胞毒性和氧化应激参数。聚合时间不影响细胞活力,总SH和TBARS;但是,SOD含量略有增加。临床相关性我们的研究强调了在仅由CQ和EDAB组成的二元胶粘剂体系中掺入第三种元素碘盐的相关性。结果当DPI与高浓度的EDAB相关时,细胞活力降低。当使用较低浓度的EDAB时,这种减少似乎减弱了。当EDAB和DPI结合时,没有显示出氧化损伤。三元系统(CQ + EDAB较低浓度+ DPI)组的转化度增加,但不影响UTS,细胞毒性和氧化应激参数。聚合时间不影响细胞活力,总SH和TBARS;但是,SOD含量略有增加。临床相关性我们的研究强调了在仅由CQ和EDAB组成的二元胶粘剂体系中掺入第三种元素碘盐的相关性。当使用较低浓度的EDAB时,这种减少似乎减弱了。当EDAB和DPI结合时,没有显示出氧化损伤。三元系统(CQ + EDAB较低浓度+ DPI)组的转化度增加,但不影响UTS,细胞毒性和氧化应激参数。聚合时间不影响细胞活力,总SH和TBARS;但是,SOD含量略有增加。临床相关性我们的研究强调了在仅由CQ和EDAB组成的二元胶粘剂体系中掺入第三种元素碘盐的相关性。当使用较低浓度的EDAB时,这种减少似乎减弱了。当EDAB和DPI结合时,没有显示出氧化损伤。三元系统(CQ + EDAB较低浓度+ DPI)组的转化度增加,但不影响UTS,细胞毒性和氧化应激参数。聚合时间不影响细胞活力,总SH和TBARS;但是,SOD含量略有增加。临床相关性我们的研究强调了在仅由CQ和EDAB组成的二元胶粘剂体系中掺入第三种元素碘盐的相关性。不会影响UTS,细胞毒性和氧化应激参数。聚合时间不影响细胞活力,总SH和TBARS;但是,SOD含量略有增加。临床相关性我们的研究强调了在仅由CQ和EDAB组成的二元胶粘剂体系中掺入第三种元素碘盐的相关性。不会影响UTS,细胞毒性和氧化应激参数。聚合时间不影响细胞活力,总SH和TBARS;但是,SOD含量略有增加。临床相关性我们的研究强调了在仅由CQ和EDAB组成的二元胶粘剂体系中掺入第三种元素碘盐的相关性。
更新日期:2018-07-01
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