Kaya Sadullah, Yiğit Özer Senem, Adigüzel Özkan, Oruçoğlu Hasan, Değer Yalçın, Tümen Emin Caner, Uysal İbrahim
Department of Endodontics, Dental Faculty, Dicle University, Diyarbakir, Turkey.
Department of Endodontics, Dental Faculty, Adnan Menderes University, Aydın, Turkey.
Med Sci Monit. 2015 Mar 31;21:937-44. doi: 10.12659/MSM.892741.
Endodontically treated teeth with excessive loss of tooth structure are frequently restored using fiber posts. In this in vitro study, the apical leakage of self- and dual-activated curing modes for dual-curing resins cementing a translucent fiber post was evaluated using computerized fluid filtration meter and dye extraction method.
One hundred and four extracted human maxillary incisors with single root and canal were used. Experimental samples embedded in a closed system were divided into 4 groups (n=20) according to 2 dual-curing luting systems, with 2 different curing modes (either with self- or light-activation): (1) Panavia F 2.0 with self-cure, (2) Panavia F 2.0 with light-activation, (3) Clearfill SA with self-cure, and (4) Clearfill SA with light activation. Twenty-four teeth served as negative and positive controls. Translucent fiber posts were luted in the roots except in the control groups.
Statistical analysis indicated no significant difference in leakage among groups (p>0.05) with 4.12 × 10(-4) (Panavia self-cure), 4.55 × 10(-4) (Clearfill SA self-cure), 5.17 × 10(-4) (Panavia dual-cure), and 5.59 × 10(-4) (Clearfill SA dual-cure) in fluid-filtration method. Absorbance values for dye-extraction method were 266 nanometer (nm) (Panavia self-cure), 268 nm (Clearfill SA self-cure), 270 nm (Panavia dual-cure), and 271 nm (Clearfill SA dual-cure), in which difference among the groups were not statistically significant (p>0.05). When comparing the leakage, assessment methods results showed no statistically significant difference between the tested evaluation techniques (p>0.05).
Light- and self-activation curing modes of Panavia F 2.0 and Clearfill SA perform similar to each other in a closed system.
牙体结构过度丧失的经根管治疗牙齿常使用纤维桩进行修复。在本体外研究中,使用计算机化流体过滤仪和染料提取法评估了用于粘结半透明纤维桩的双固化树脂的自固化和双激活固化模式的根尖微渗漏情况。
使用104颗拔除的单根单根管的人上颌切牙。嵌入封闭系统的实验样本根据2种双固化粘结系统和2种不同的固化模式(自固化或光激活)分为4组(n = 20):(1)自固化的Panavia F 2.0;(2)光激活的Panavia F 2.0;(3)自固化的Clearfill SA;(4)光激活的Clearfill SA。24颗牙齿作为阴性和阳性对照。除对照组外,在牙根中粘结半透明纤维桩。
统计分析表明,流体过滤法中,各组间渗漏无显著差异(p>0.05),Panavia自固化组为4.12×10⁻⁴,Clearfill SA自固化组为4.55×10⁻⁴,Panavia双固化组为5.17×10⁻⁴,Clearfill SA双固化组为5.59×10⁻⁴。染料提取法的吸光度值分别为266纳米(nm)(Panavia自固化)、268 nm(Clearfill SA自固化)、270 nm(Panavia双固化)和271 nm(Clearfill SA双固化),各组间差异无统计学意义(p>0.05)。比较渗漏时,评估方法结果显示,测试的评估技术之间无统计学显著差异(p>0.05)。
在封闭系统中,Panavia F 2.0和Clearfill SA的光激活和自激活固化模式表现相似。