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Comparative analysis of physicochemical properties of root perforation sealer materials.

Dorileo MC, Pedro FL, Bandeca MC, Guedes OA, Villa RD, Borges AH - Restor Dent Endod (2014)

Bottom Line: The 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.On 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.

View Article: PubMed Central - PubMed

Affiliation: Departament of Endodontics, Faculty of Dentistry, University of Cuiabá, Cuiaba, Mato grosso, Brazil.

ABSTRACT

Objectives: This study evaluated the solubility, dimensional alteration, pH, electrical conductivity, and radiopacity of root perforation sealer materials.

Materials and methods: For 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).

Results: The 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.

Conclusions: On 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.

No MeSH data available.


Illustration of the radiographic density reading over images by the DigoraTM system. (a) Acrylic plate (22 × 45 × 1 mm) with holes having a depth of 1 mm and an internal diameter of 5 mm filled with the tested cements; (b) Graduated aluminum step wedge varying from 1 to 10 mm in thickness in uniform steps of 1 mm.
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Figure 3: Illustration of the radiographic density reading over images by the DigoraTM system. (a) Acrylic plate (22 × 45 × 1 mm) with holes having a depth of 1 mm and an internal diameter of 5 mm filled with the tested cements; (b) Graduated aluminum step wedge varying from 1 to 10 mm in thickness in uniform steps of 1 mm.

Mentions: The radiopacity of the materials was compared using the aluminum step wedge, as illustrated in Figure 3. MTA-based cements presented the highest radiopacity mean values among the tested materials, overcoming the three steps of the aluminum step wedge (132.47), which is the minimum recommended by the ANSI/ADA, while PC did not meet this requirement.23 The statistical analysis demonstrated the difference among the tested materials (p < 0.05, Table 2).


Comparative analysis of physicochemical properties of root perforation sealer materials.

Dorileo MC, Pedro FL, Bandeca MC, Guedes OA, Villa RD, Borges AH - Restor Dent Endod (2014)

Illustration of the radiographic density reading over images by the DigoraTM system. (a) Acrylic plate (22 × 45 × 1 mm) with holes having a depth of 1 mm and an internal diameter of 5 mm filled with the tested cements; (b) Graduated aluminum step wedge varying from 1 to 10 mm in thickness in uniform steps of 1 mm.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4125584&req=5

Figure 3: Illustration of the radiographic density reading over images by the DigoraTM system. (a) Acrylic plate (22 × 45 × 1 mm) with holes having a depth of 1 mm and an internal diameter of 5 mm filled with the tested cements; (b) Graduated aluminum step wedge varying from 1 to 10 mm in thickness in uniform steps of 1 mm.
Mentions: The radiopacity of the materials was compared using the aluminum step wedge, as illustrated in Figure 3. MTA-based cements presented the highest radiopacity mean values among the tested materials, overcoming the three steps of the aluminum step wedge (132.47), which is the minimum recommended by the ANSI/ADA, while PC did not meet this requirement.23 The statistical analysis demonstrated the difference among the tested materials (p < 0.05, Table 2).

Bottom Line: The 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.On 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.

View Article: PubMed Central - PubMed

Affiliation: Departament of Endodontics, Faculty of Dentistry, University of Cuiabá, Cuiaba, Mato grosso, Brazil.

ABSTRACT

Objectives: This study evaluated the solubility, dimensional alteration, pH, electrical conductivity, and radiopacity of root perforation sealer materials.

Materials and methods: For 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).

Results: The 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.

Conclusions: On 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.

No MeSH data available.