Comparative analysis of physicochemical properties of root perforation sealer materials

Abstract

ObjectivesThis study evaluated the solubility, dimensional alteration, pH, electrical conductivity, and radiopacity of root perforation sealer materials.Materials and MethodsFor the pH test, the samples were immersed in distilled water for different periods of time. Then, the samples were retained in plastic recipients, and the electrical conductivity of the solution was measured. The solubility, dimensional alteration, and radiopacity properties were evaluated according to Specification No. 57 of the American National Standards Institute/American Dental Association (ANSI/ADA). Statistical analyses were carried out using analysis of variance (ANOVA) and Tukey's test at a significance level of 5%. When the sample distribution was not normal, a nonparametric ANOVA was performed with a Kruskal-Wallis test (α = 0.05).ResultsThe results showed that white structural Portland cement (PC) had the highest solubility, while mineral trioxide aggregate (MTA)-based cements, ProRoot MTA (Dentsply-Tulsa Dental) and MTA BIO (Ângelus Ind. Prod.), had the lowest values. MTA BIO showed the lowest dimensional alteration values and white PC presented the highest values. No differences among the tested materials were observed in the the pH and electrical conductivity analyses. Only the MTA-based cements met the ANSI/ADA recommendations regarding radiopacity, overcoming the three steps of the aluminum step wedge.ConclusionsOn the basis of these results, we concluded that the values of solubility and dimensional alteration of the materials were in accordance with the ANSI/ADA specifications. PCs did not fulfill the ANSI/ADA requirements regarding radiopacity. No differences were observed among the materials with respect to the pH and electrical conductivity analyses.

Effects of the addition of nanoparticulate calcium carbonate on setting time, dimensional change, compressive strength, solubility and pH of MTA

“…, Dorileo et al . ) and the biological properties of PC and MTA are similar (Silva Neto et al . , , Dreger et al .…”

Portland cement versus MTA as a root-end filling material. A pilot study

“…The major components of Portland cement are comparable to those of MTA, except for the presence of the radiopaque agent bismuth oxide in MTA 5,6 . Other similarities between the two materials include antimicrobial activity and biocompatibility [7][8][9][10][11] .…”

An ex-vivo comparative study of root-end marginal adaptation using grey mineral trioxide aggregate, white mineral trioxide aggregate, and Portland cement under scanning electron microscopy

“…Besides marginal adaptation, when considering other physico-chemical properties, a recent study by Dorileo et al . [ 38 ] resulted that WPC had the highest solubility, while MTA-based cement had lowest values, and there were no differences among the pH and electrical conductivity analyses. Also, WPC showed highest dimensional alteration value and only MTA-based cement met the ANSI/ADA recommendations regarding radiopacity.…”