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Physicochemical Properties of Root Canal Filling Materials for Primary Teeth

descriptionPublicationkeyboard_double_arrow_right Article 01 Apr 2016Publisher:FapUNIFESP (SciELO)Journal:Brazilian Dental Journal, volume 27, pages 196-201 (eissn: 0103-6440,

Authors: Segato, Raquel Assed Bezerra; Pucinelli, Carolina Maschietto; Ferreira, Danielly Cunha Araújo; Daldegan, Andiara De Rossi; Silva, Roberto S. da; Nelson-Filho, Paulo; Silva, Léa A. B. da;

doi: 10.1590/0103-6440201600206

pmid: 27058384

Physicochemical Properties of Root Canal Filling Materials for Primary Teeth

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Abstract

Abstract This study evaluated physiochemical proprieties of a calcium hydroxide-based paste (Calen(r)) combined with a zinc oxide cement at different ratios (1:0.5, 1:0.65, 1:0.8 and 1:1). Materials were compared regarding setting time, pH variation, radiopacity, solubility, dimensional changes, flow and release of chemical elements. Data were analyzed statistically by ANOVA and Tukey's test (α=0.05). Longer setting time and higher dimensional changes and solubility values were exhibited by 1:0.65 and 1:0.5 ratios (p<0.05). The 1:0.5 and 1:0.65 ratios exhibited the highest pH values at all time points. All materials exhibited high radiopacity values. Significant differences were found only between 1:0.5 and 1:1 ratios for calcium and zinc release (p<0.05), whereas the amount of zirconium was similar among all groups (p>0.05). Considering the evaluated proprieties, combinations of Calen(r) paste with ZO at 1:0.5 and 1:0.65 ratios had the best results as root canal filling materials for use in primary teeth.

Related Organizations

Universidade de São Paulo
Brazil
University of São Paulo
Brazil

Keywords

pH, Spectrometry, X-Ray Emission, Hydrogen-Ion Concentration, setting time, Root Canal Filling Materials, dimensional changes, solubility., filling materials, primary teeth, Solubility, Materials Testing, Humans, calcium hydroxide, Tooth, Deciduous, radiopacity

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