Dikmen Benin, Gurbuz Ozge, Ozsoy Alev, Eren Meltem Mert, Cilingir Aylin, Yucel Taner
J Adhes Dent. 2015 Dec;17(6):499-504. doi: 10.3290/j.jad.a35257.
To evaluate the effects of different antioxidant treatments on the microtensile bond strength of an adhesive system to sodium hypochlorite (NaOCl)-treated dentin.
Thirty extracted third molars were sectioned 3 mm below the occlusal surface and divided into six groups according to the antioxidant treatment received: control group: distilled water; NaOCl group: 5.25% NaOCl and distilled water; proanthocyanidin (PA) group: 5.25% NaOCl, 5% PA and distilled water; 1-week storage group: 5.25% NaOCl and storage for 1 week in distilled water; Accel group: 5.25% NaOCl, Accel, and distilled water; noni group: 5.25% NaOCl, noni fruit juice, and distilled water. NaOCl, PA, Accel, noni, and distilled water were administered for 30 s, 10 min, 30 s, 10 min, and 30 s, respectively. A self-etching adhesive system (Single Bond Universal Adhesive) was applied to each specimen and a resin composite (Filtek Z550) was built up to a height of 5 mm on the dentin surface. Each specimen was serially sectioned to obtain sticks with a cross-sectional area of 1 mm2, and their microtensile bond strength was determined. Statistical differences between groups were analyzed using one-way ANOVA and Tamhane's T2 test.
Microtensile bond strength in the NaOCl group was significantly lower than in all other groups. However, there were no significant differences in the bond strength between the groups treated with different antioxidants.
NaOCl significantly reduced the microtensile bond strength of the adhesive system. The application of PA, Accel, and noni fruit juice to NaOCl-treated dentin significantly improved the microtensile bond strength.
评估不同抗氧化处理对一种粘结系统与次氯酸钠（NaOCl）处理的牙本质之间微拉伸粘结强度的影响。
30颗拔除的第三磨牙在咬合面下方3mm处进行切片，并根据接受的抗氧化处理分为六组：对照组：蒸馏水；NaOCl组：5.25% NaOCl和蒸馏水；原花青素（PA）组：5.25% NaOCl、5% PA和蒸馏水；1周储存组：5.25% NaOCl并在蒸馏水中储存1周；Accel组：5.25% NaOCl、Accel和蒸馏水；诺丽果组：5.25% NaOCl、诺丽果汁和蒸馏水。NaOCl、PA、Accel、诺丽果汁和蒸馏水分别处理30秒、10分钟、30秒、10分钟和30秒。将一种自酸蚀粘结系统（单键通用粘结剂）应用于每个标本，并在牙本质表面堆积高度为5mm的树脂复合材料（Filtek Z550）。将每个标本连续切片以获得横截面积为1mm²的小棒，并测定其微拉伸粘结强度。使用单因素方差分析和Tamhane's T2检验分析组间的统计学差异。
NaOCl组的微拉伸粘结强度显著低于所有其他组。然而，不同抗氧化剂处理组之间的粘结强度没有显著差异。
NaOCl显著降低了粘结系统的微拉伸粘结强度。将PA、Accel和诺丽果汁应用于NaOCl处理的牙本质可显著提高微拉伸粘结强度。
