Comparative analysis of the particle size and shape of commercially available mineral trioxide aggregates and Portland cement:: A study with a flow particle image analyzer

被引：103

作者：

Komabayashi, Takashi ^{[1
]}

Spangberg, Larz S. W. ^{[1
]}

机构：

[1] Univ Connecticut, Sch Dent Med, Dept Oral Hlth & Diagnost Sci, Div Endodontol, Farmington, CT 06030 USA

来源：

JOURNAL OF ENDODONTICS | 2008年 / 34卷 / 01期

关键词：

circularity; image analysis; mineral trioxide aggregate (MTA); particle shape; particle size; Portland cement;

D O I：

10.1016/j.joen.2007.10.013

中图分类号：

R78 [口腔科学];

学科分类号：

1003 ;

摘要：

The aim of this study is to characterize the particle size distribution and circularity of various Mineral Trioxide Aggregates (MTA) (ProRoot MTA/ MTA Angelus/Gray and White) and Portland cements with effective size ranges of 1.5-160 mu m using a flow particle analyzer (Sysmex FPIA-3000, Kobe, Japan). Cumulative percentage of particles between 6 and 10 mu m were, 65, 73, 48, 53, and 70%, for Gray ProRoot MTA, White ProRoot MTA, Gray MTA Angelus, White MTA Angelus, and Portland cement, respectively. ProRoot MTA contains fewer large particles than MTA Angelus. MTA Angelus contains a higher number of small particles than ProRoot MTA. White MTA contains smaller particles with a narrower range of size distribution than Gray MTA. MTA Angelus particles have relatively low circularity and wide size distribution and are less homogeneous than ProRoot MTA.

引用

页码：94 / 98

页数：5

共 27 条

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