Sealing ability of MTA and radiopaque Portland cement with or without calcium chloride for root-end filling

被引：94

作者：

Bortoluzzi, Eduardo Antunes ^{[1
]}

Broon, Norberto Juarez ^{[1
]}

Bramante, Clovis Monteiro ^{[1
]}

Garcia, Roberto Brandao ^{[1
]}

de Moraes, Ivaldo Gomes ^{[1
]}

Bernardineli, Norberti ^{[1
]}

机构：

[1] Univ Sao Paulo, Fac Odontol Bauru, Bauru Dent Sch, Dept Endodont, BR-17012901 Sao Paulo, Brazil

来源：

JOURNAL OF ENDODONTICS | 2006年 / 32卷 / 09期

关键词：

calcium chloride; mineral trioxide aggregate; retrograde obturation;

D O I：

10.1016/j.joen.2006.04.006

中图分类号：

R78 [口腔科学];

学科分类号：

1003 ;

摘要：

The aim of this study was to evaluate the influence of calcium chloride (CaCl2) on the sealing ability of three Mineral Trioxide Aggregate (MTA) cements, ProRoot MTA, MTA-Angelus, and radiopaque White Portland cement (WPC) for retrograde root filling. Seventy roots of extracted single-rooted teeth were instrumented and obturated. After sectioning the samples at 2 mm from the apex, they received one layer of Araldite and two coats of nail enamel, except for the apical dentinal surface submitted to apicectomy. Standardized retrograde cavities were prepared, filled with one of the materials, and immersed in 0.2% Rhodamine B solution for 72 hours. Dye leakage was analyzed on a light microscope with ocular micrometer. Kruskal-Wallis and Miller tests were used to compare groups arranged in increasing order of leakage, according to mean rank of scores: WPC+CaCl2, MTA-Angelus+CaCl2, ProRoot MTA+CaCl2, MTA-Angelus, ProRoot MTA, and WPC. CaCl2 improved the sealing ability of all three MTA cements.

引用

页码：897 / 900

页数：4

共 35 条

[1] An evaluation of accelerated Portland cement as a restorative material [J].