Dental and Medical Problems

Dent. Med. Probl.
Index Copernicus (ICV 2018) – 113.05
MNiSW – 20
Average rejection rate – 62.63%
ISSN 1644-387X (print)
ISSN 2300-9020 (online)
Periodicity – quarterly

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Dental and Medical Problems

2019, vol. 56, nr 2, April-June, p. 161–165

doi: 10.17219/dmp/105626

Publication type: original article

Language: English

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Creative Commons BY-NC-ND 3.0 Open Access

Bond strength and solubility of a novel polydimethylsiloxane-gutta-percha calcium silicate-containing root canal sealer

Wytrzymałość wiązania oraz rozpuszczalność nowego uszczelniacza kanałowego zawierającego polidimetylosiloksan-gutaperkę i krzemian wapnia

Mennatullah Mohammed Khalil1,A,C,D,E,F, Mai Hisham Abdelrahman2,A,E,F, Sara El-Mallah3,A,B,F

1 Department of Dental Biomaterials, Faculty of Dentistry, Fayoum University, Egypt

2 Department of Dental Biomaterials, Faculty of Dentistry, Modern Science and Arts University, Cairo, Egypt

3 Department of Endodontics, Faculty of Dentistry, Fayoum University, Egypt

Abstract

Background. Endodontic sealers are essential for sealing gutta-percha to the dentin walls. They help to ensure that the canal remains free of microorganisms which might lead to infection. In order to perform their intended function, the sealers should properly adhere to the dentin walls and remain insoluble when set in the canal.
Objectives. The purpose of this study was to evaluate the bond strength and solubility of a novel polydimethylsiloxane-gutta-percha calcium silicate-containing root canal sealer (GuttaFlow® bioseal) and compare it with the zinc oxide and eugenol sealer (Zical®).
Material and Methods. The endodontic sealers used in this study were GuttaFlow bioseal and Zical. The bond strength was assessed using push-out bond strength test in 3 root segments: coronal, middle and apical. The solubility was tested according to the American National Standards Institute / American Dental Association (ANSI/ADA) specification No. 57 at 3 different time intervals: 1, 7 and 14 days.
Results. The push-out bond strength in all root segments was significantly higher in Zical compared to GuttaFlow bioseal. The solubility was significantly higher on day 1 and 7 in Zical compared to GuttaFlow bioseal, and on day 14, the difference between them was not significant.
Conclusion. Within the limitations of this study, the endodontic sealer GuttaFlow bioseal showed low bond strength values compared to Zical. The solubility of the set GuttaFlow bioseal and Zical were both within the recommended ANSI/ADA levels.

Key words

solubility, GuttaFlow bioseal, polydimethylsiloxane-guttapercha sealer, calcium silicate-containing sealer, push-out bond strength

Słowa kluczowe

rozpuszczalność, GuttaFlow bioseal, gutaperka na bazie polidimetylosiloksanu, uszczelniacz na bazie krzemianu wapnia, wytrzymałość wiązania w teście wypychania

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