Temperature changes affect the rheological properties of a silicone-based and an epoxy resin-based root canal sealers

de Freitas JV, Ebert J, Mazzi-Chaves JF, Tomazinho FSF, Sousa-Neto MDd, Lohbauer U, Baratto-Filho F (2020)

Publication Type: Journal article

Publication year: 2020

Journal

Australian Endodontic Journal Wiley-Blackwell

DOI: 10.1111/aej.12423

Abstract

To evaluate temperature changes on the rheological properties (setting time and complex viscosity (η*)) of GuttaFlow Bioseal (GFB) and AH Plus Jet (AHPJ). Rheological measurements were performed in oscillating mode at the strain amplitude and angular frequency of 0.01% and 10 rad s−1, respectively. Each sealer (n = 5) was tested running a temperature ramp (rapid increase to 80°C, 1 min constantly at 80°C, and slower decrease to 37°C). Control groups (n = 5) were tested at a constant temperature of 37°C. Kolmogorov–Smirnov and one-way ANOVA (P < 0.05) statistical tests were performed. The temperature ramp reduced setting time of GFB (24.85 to 4.45 min) (P < 0.05), but did not alter that of AHPJ (P > 0.05). GFB exhibited an increased η*, whereas the AHPJ η* was decreased when heated (P < 0.05). Rheological properties of sealers were negatively affected by temperature changes.

Authors with CRIS profile

Johannes Ebert Department of Operative Dentistry and Periodontology Ulrich Lohbauer Medizinische Fakultät

Involved external institutions

Universidade Positivo (UP) BR Brazil (BR) University of São Paulo / Universidade de São Paulo (USP) BR Brazil (BR) Universidade da Região de Joinville (UNIVILLE) BR Brazil (BR)

How to cite

APA:

de Freitas, J.V., Ebert, J., Mazzi-Chaves, J.F., Tomazinho, F.S.F., Sousa-Neto, M.D.d., Lohbauer, U., & Baratto-Filho, F. (2020). Temperature changes affect the rheological properties of a silicone-based and an epoxy resin-based root canal sealers. Australian Endodontic Journal. https://doi.org/10.1111/aej.12423

MLA:

de Freitas, Jéssica Vavavassori, et al. "Temperature changes affect the rheological properties of a silicone-based and an epoxy resin-based root canal sealers." Australian Endodontic Journal (2020).

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