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(Reference retrieved automatically from SciELO through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Physicochemical Properties of Root Canal Filling Materials for Primary Teeth

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Author(s):
Raquel Assed Bezerra Segato [1] ; Carolina Maschietto Pucinelli [2] ; Danielly Cunha Araújo Ferreira [3] ; Andiara De Rossi Daldegan [4] ; Roberto S. da Silva [5] ; Paulo Nelson-Filho [6] ; Léa A. B. da Silva [7]
Total Authors: 7
Affiliation:
[1] University of São Paulo. Department of Pediatric Dentistry, School of Dentistry of Ribeirão Preto - Brasil
[2] University of São Paulo. Department of Pediatric Dentistry, School of Dentistry of Ribeirão Preto - Brasil
[3] University of São Paulo. Department of Pediatric Dentistry, School of Dentistry of Ribeirão Preto - Brasil
[4] University of São Paulo. Department of Pediatric Dentistry, School of Dentistry of Ribeirão Preto - Brasil
[5] University of São Paulo. Department of Physics and Chemistry, School of Pharmaceutical Sciences of Ribeirão Preto - Brasil
[6] University of São Paulo. Department of Pediatric Dentistry, School of Dentistry of Ribeirão Preto - Brasil
[7] University of São Paulo. Department of Pediatric Dentistry, School of Dentistry of Ribeirão Preto - Brasil
Total Affiliations: 7
Document type: Journal article
Source: Brazilian Dental Journal; v. 27, n. 2, p. 196-201, 2016-04-00.
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. (AU)

FAPESP's process: 11/00277-7 - An in vitro evaluation of physicochemical properties of filling materials of primary teeth: ions release, pH, electric conductivity and radiopacity
Grantee:Carolina Maschietto Pucinelli
Support type: Scholarships in Brazil - Scientific Initiation