Published: 2015-03-31

Comparison of Apical Microleakage of Dual-Curing Resin Cements with Fluid-Filtration and Dye Extraction Techniques

Sadullah Kaya, Senem Yiğit Özer, Özkan Adigüzel, Hasan Oruçoğlu, Yalçın Değer, Emin Caner Tümen, İbrahim Uysal

(Department of Endodontics, Dental Faculty, Dicle University, Diyarbakir, Turkey)

Med Sci Monit 2015; 21:937-944

DOI: 10.12659/MSM.892741

Background: 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.
Material and Methods: 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.
Results: 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, asse... read more

Keywords: Curing Lights, Dental, Dental Leakage, Endodontics, Numerical Analysis, Computer-Assisted, Self-Curing of Dental Resins, Tooth, Nonvital

Published: 2015-03-30

Insulin Use and Risk of Diabetic Macular Edema in Diabetes Mellitus: A Systemic Review and Meta-Analysis ...

Jun Zhang, Jingxue Ma, Nalei Zhou, Bin Zhang, Jianbin An

Med Sci Monit 2015; 21:929-936

DOI: 10.12659/MSM.892056

Published: 2015-03-29

Epidural Analgesia with Amide Local Anesthetics, Bupivacaine, and Ropivacaine in Combination with Fentany...

Yiyang Li, Cong Hu, Yanyan Fan, Huixia Wang, Hongmei Xu

Med Sci Monit 2015; 21:921-928

DOI: 10.12659/MSM.892276