Advanced search
Start date
(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Physicochemical Properties and Volumetric Change of Silicone/Bioactive Glass and Calcium Silicate-based Endodontic Sealers

Full text
Tanomaru-Filho, Mario [1] ; Esteves Torres, Fernanda Ferrari [1] ; Chavez-Andrade, Gisselle Moraima [1] ; de Almeida, Madelise [1] ; Navarro, Luciana Guilherme [1] ; Steier, Liviu [2] ; Guerreiro-Tanomaru, Juliane Maria [1]
Total Authors: 7
[1] Sao Paulo State Univ, Araraquara Dent Sch, Dept Restorat Dent, Araraquara, SP - Brazil
[2] Univ Warwick, Warwick Med Sch, Coventry, W Midlands - England
Total Affiliations: 2
Document type: Journal article
Source: JOURNAL OF ENDODONTICS; v. 43, n. 12, p. 2097-2101, DEC 2017.
Web of Science Citations: 9

Introduction: This study evaluated setting time (ST), radiopacity, pH, flow, solubility, and volumetric change (VC) of a silicone, gutta-percha, and bioactive glass-based sealer, GuttaFlow Bioseal (GFB), and a calcium silicate-based sealer, TotalFill BC Sealer (TFBC), in comparison with AH Plus. Methods: ST and flow were evaluated in accordance with the ISO 6876 Standard. pH was evaluated after different time intervals (1, 3, 7, 14, 21, and 28 days). Radiopacity was evaluated by radiographic analysis in millimeters of aluminum. Solubility was evaluated by means of mass loss (%) after 7 and 30 days of immersion in distilled water. VC was evaluated by micro-computed tomography, by using cavities 3 mm deep and 1 mm in diameter in acrylic resin, filled with the materials. The materials were evaluated after setting and after 7 and 30 days of immersion in distilled water. The data were submitted to analysis of variance and Tukey statistical tests (P < .05). Results: TFBC demonstrated the highest pH and solubility. GFB had the shortest ST, and lowest radiopacity and flow values. VC was similar for the sealers in both time intervals. Conclusions: TFBC presented the highest pH and solubility, but showed similar VC to GFB and AH Plus. GFB showed proper physicochemical properties. Micro-computed tomography complements the physicochemical analysis of endodontic sealers. (AU)

FAPESP's process: 16/00321-0 - Development of new methodologies using micro-CT for evaluation of physicochemical properties of repair materials and endodontic sealers
Grantee:Fernanda Ferrari Esteves Torres
Support type: Scholarships in Brazil - Doctorate
FAPESP's process: 15/03437-6 - Evaluation of reciprocating preparation, root canal filling, and the physicochemical and biological properties of filling and repair materials
Grantee:Mario Tanomaru Filho
Support type: Regular Research Grants