Potential role of surface wettability on the long-term stability of dentin bonds after surface biomodification.
Potential role of surface wettability on the long-term stability of dentin bonds after surface biomodification.
复制标题
DOI：
10.1016/j.jbiomech.2015.03.016
复制
发表时间：
2015-07-16
影响因子：
2.4
通讯作者：
Bedran-Russo, Ana K.
中科院分区：
文献类型：
--
作者：
Leme, Ariene A.;Vidal, Cristina M. P.;Hassan, Lina Saleh;Bedran-Russo, Ana K.
粘合界面的降解会导致树脂复合材料修复体的失败。在粘合过程期间和之后，牙本质基质的亲水性可能导致粘合界面更容易随着时间的推移而降解。本研究评估了牙本质基质的化学改性对粘合界面的润湿性和长期降低的弹性模量 (Er) 的影响。根据引发溶液将人磨牙分为几组：蒸馏水（对照）、6.5% 富含原花青素的葡萄籽提取物 (PAC)、5.75% 1-乙基-3-[3-二甲基氨基丙基]碳二亚胺盐酸盐/1.4% n-羟基琥珀酰亚胺 (EDC/NHS) 和 5% 戊二醛 (GA)。在牙本质基质化学改性之前和之后验证水表面接触角。脱矿牙本质表面用底漆溶液处理，并用 One Step Plus (OS) 和 Single Bond Plus (SB) 以及树脂复合材料修复。在人工唾液中放置 24 小时和 30 个月后，对粘合剂、混合层和下面的牙本质的 Er 进行评估。使用底漆溶液后，牙本质亲水性显着降低。老化显着降低了对照组混合层和下面牙本质的 Er。随着时间的推移，GA 组的 Er 在混合层和下面的牙本质上保持稳定。 24 小时后，在混合层中观察到 PAC 和 EDC/NHS 组的 Er 显着升高。改性牙本质基质亲水性的降低可能会影响混合层的直接机械性能。存储 30 个月后，牙本质生物改性可防止混合层和下方牙本质的严重老化。
Degradation of the adhesive interface contributes to the failure of resin composite restorations. The hydrophilicity of the dentin matrix during and after bonding procedures may result in an adhesive interface that is more prone to degradation over time. This study assessed the effect of chemical modification of dentin matrix on the wettability and the long-term reduced modulus of elasticity (Er) of the adhesive interfaces. Human molars were divided into groups according to the priming solutions: distilled water (control), 6.5% Proanthocyanidin-rich grape seed extract (PACs), 5.75% 1-ethyl-3-[3-dimethylaminopropyl] carbodiimide hydrochloride/1.4% n-hydroxysuccinimide (EDC/NHS) and 5% Glutaraldehyde (GA). The water-surface contact angle was verified before and after chemical modification of the dentin matrix. The demineralized dentin surface was treated with the priming solutions and restored with One Step Plus (OS) and Single Bond Plus (SB) and resin composite. The Er of the adhesive, hybrid layer and underlying dentin was evaluated after 24 h and 30 months in artificial saliva. The dentin hydrophilicity significantly decreased after application of the priming solutions. Aging significantly decreased the Er in the hybrid layer and underlying dentin of control groups. The Er of GA groups remained stable over time at the hybrid layer and underlying dentin. Significant higher Er was observed for PACs and EDC/NHS groups at the hybrid layer after 24 h. The decreased hydrophilicity of the modified dentin matrix likely influence the immediate mechanical properties of the hybrid layer. Dentin biomodification prevented substantial aging at the hybrid layer and underlying dentin after 30 months storage.
登录
查看更多内容
影响因子：
14
作者：
Ito, S;Hashimoto, M;Pashley, DH
通讯作者：
Pashley, DH
影响因子：
5
作者：
Reis, A.;Grande, R. H. M.;Loguerico, A. D.
通讯作者：
Loguerico, A. D.
聚合和溶剂诱导的富含亲水性牙本质粘合剂模拟物中的相位分离。
影响因子：
9.7
作者：
Abedin, Farhana;Ye, Qiang;Good, Holly J.;Parthasarathy, Ranganathan;Spencer, Paulette
通讯作者：
Spencer, Paulette
影响因子：
7.6
作者：
De Munck, J;Van Meerbeek, B;Vanherle, G
通讯作者：
Vanherle, G
影响因子：
7.6
作者：
Mazzoni, A.;Apolonio, F. M.;Breschi, L.
通讯作者：
Breschi, L.