Solubility, Porosity, Dimensional and Volumetric Change of Endodontic Sealers

Torres, Fernanda Ferrari Esteves; Guerreiro-Tanomaru, Juliane Maria; Bosso-Martelo, Roberta; Espir, Camila Galletti; Camilleri, Josette; Tanomaru-Filho, Mario

doi:10.1590/0103-6440201902607

Acessibilidade / Reportar erro

Brasil

Español English

sumário « anterior atual seguinte »

Sumário

Article • Braz. Dent. J. 30 (4) • Jul-Aug 2019 • https://doi.org/10.1590/0103-6440201902607 copy

Solubility, Porosity, Dimensional and Volumetric Change of Endodontic Sealers

Authorship SCIMAGO INSTITUTIONS RANKINGS

Abstract

The aim of this study was to evaluate physical properties of endodontic sealers (AH Plus, MTA Fillapex and Endofill), by conventional and micro-CT tests. Dimensional stability was evaluated after immersion of materials in distilled water for 30 days. Solubility and volumetric change were evaluated after 7 and 30 days of immersion in distilled water. Solubility was evaluated by means of mass loss and volumetric change was assessed by micro-CT. Porosity was evaluated under a microscope after 7 days of immersion in distilled water, and by using micro-CT after setting and immersion in distilled water for 7 and 30 days. Statistical analysis was performed by ANOVA and Tukey’s test with 5% significance level. MTA Fillapex presented the highest solubility (p<0.05), showing values above the ISO/ADA recommendations. MTA Fillapex presented higher volumetric and dimensional changes, followed by Endofill and AH Plus (p<0.05). Dimensional stability of the MTA Fillapex and AH Plus did not follow ISO/ADA standards. The highest total porosity was observed for MTA Fillapex (p<0.05). Endofill had higher total porosity than AH Plus according to microscope evaluation (p<0,05), and both sealers were similar in micro-CT assessment (p>0,05). In conclusion, MTA Fillapex presented higher solubility, dimensional and volumetric change besides porosity compared to the other evaluated sealers. The assessed physical properties of sealers are related, and the different tests provided complementary data. Micro-CT is a valuable method for assessment of physical properties of endodontic materials.

Key Words:
endodontics; x-ray microtomography; physicochemical analysis; silicate cement

	AHP	EDF	MTAF
Dimensional stability	0.56 (0.17)^c	-0.76 (0.14)^b	-1.69 (0.24)^a
Solubility 7 days (mass loss)	-0.11 (0.13)^b	1.59 (0.17)^b	22.03 (2.00)^a
Solubility 30 days (mass loss)	-0.40 (0.27)^b	2.49 (0.62)^b	25.63 (5.84)^a

	AHP	EDF	MTAF
Volumetric Change 7 days	0.32 (0.13)^c	-0.90 (0.45)^b	-11.14 (1.10)^a
Volumetric Change 30 days	-0.60 (0.31)^c	-6.84 (2.40)^b	-13.66 (2.55)^a

	AHP	EDF	MTAF
Number of pores	16.17 (4.36)^c	42.67 (12.60)^b	103.7 (32.54)^a

	AHP	MTAF	EDF
Initial open porosity	2.47 (0.74)^a,A	44.29 (9.30)^b,A	4.33 (0.85)^a,A
Open porosity 7 days	4.09 (1.04)^a,B	47.80(7.75)^b,A	4.01 (0.87)^a,A
Open porosity 30 days	3.42 (1.23)^a,A	-	4.16 (1.09)^a,A
Initial closed porosity	0.05 (0.02)^a,A	0.12 (0.07)^a,A	0.47 (0.09)^b,A
Closed porosity 7 days	0.10 (0.04)^a,A	0.10 (0.04)^a,A	0.47 (0.08)^b,A
Closed porosity 30 days	0.02 (0.01)^a,B	-	0.47 (0.09)^b,A
Initial Total porosity	2.70 (1.09)^a,A	44.31 (9.64)^b,A	4.96 (0.75)^a,A
Total porosity 7 days	4.30 (1.05)^a,B	49.94 (7.99)^b,A	4.37 (1.01)^a,A
Total porosity 30 days	3.10 (0.79)^a,A	-	4.51 (0.96)^a,A

Fundação Odontológica de Ribeirão Preto Av. do Café, S/N, 14040-904 Ribeirão Preto SP Brasil, Tel.: (55 16) 3602-3982, Fax: (55 16) 3633-0999 - Ribeirão Preto - SP - Brazil
E-mail: bdj@forp.usp.br

Acompanhe os números deste periódico no seu leitor de RSS

[1] Correspondence: Dr. Mario Tanomaru-Filho, Rua Humaitá, 1680, 14801-903 Araraquara, SP, Brasil. Tel: +55-16-3301-6390. e-mail: tanomaru@uol.com.br