pH influences the volumetric change of calcium silicate- and epoxy resin-based root canal sealers: An ex vivo micro-CT study

被引：3

作者：

Alves Ferreira, Claudio Malizia ^{[1
]}

de Lima, Carolina Oliveira ^{[1
]}

Pinto, Karem Paula ^{[1
]}

Almeida Barbosa, Ana Flavia ^{[1
]}

Fidalgo, Gabriel ^{[2
]}

Sena, Gabriela ^{[2
,3
]}

Colaco, Marcos Vinicius ^{[2
]}

Barroso, Regina Cely ^{[2
]}

Sassone, Luciana Moura ^{[1
]}

Nogueira Leal Silva, Emmanuel Joao ^{[1
,4
]}

机构：

[1] Rio de Janeiro State Univ UERJ, Sch Dent, Dept Endodont, Blvd 28 Setembro,157 Vila Isabel, BR-20551030 Rio De Janeiro, RJ, Brazil

[2] Rio de Janeiro State Univ UERJ, Lab Appl Phys Biomed Sci, Rio De Janeiro, Brazil

[3] Fed Univ Rio de Janeiro UFRJ, Nucl Engn Program, COPPE, Rio De Janeiro, Brazil

[4] Grande Rio Univ UNIGRANRIO, Sch Dent, Dept Endodont, Rio De Janeiro, Brazil

来源：

AUSTRALIAN ENDODONTIC JOURNAL | 2023年 / 49卷

关键词：

calcium silicate; endodontics; hydrogen-ion concentration; root canal filling materials; X-ray microtomography; MINERAL TRIOXIDE AGGREGATE; DIMENSIONAL CHANGE; ENVIRONMENT; SOLUBILITY; DENTIN;

D O I：

10.1111/aej.12716

中图分类号：

R78 [口腔科学];

学科分类号：

1003 ;

摘要：

This study assessed the influence of pH variation on the volumetric change of EndoSequence BC Sealer compared to AH Plus Jet. Eighteen single-rooted teeth were uniformly prepared and filled with one of the sealers. After 24-h storing, samples were scanned in a micro-CT device. Then, roots were immersed in 20 ml phosphate-buffered saline (PBS) with pH of 5, 7 or 12 at 37 & DEG;C for 7 and 30 days and rescanned. Statistical analysis was performed using Shapiro-Wilk's test, one-way ANOVA and Tukey's or Student's t-tests (p < 0.05). Differences between sealers were observed only at neutral pH and after 30 days of acidic pH exposure, with a higher loss of EndoSequence (p < 0.05). After 7 days, alkaline pH reduced and increased the volumetric loss of EndoSequence and AH Plus, respectively, compared to neutral pH (p < 0.05). It can be concluded that the pH directly influenced the volumetric change of both tested root canal sealers in different ways.

引用

页码：194 / 201

页数：8

共 34 条

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