A comparison of laterally condensed gutta-percha, thermoplasticized gutta-percha, and mineral trioxide aggregate as root canal filling materials

被引:66
作者
Vizgirda, PJ
Liewehr, FR
Patton, WR
McPherson, JC
Buxton, TB
机构
[1] USA, Dent Corps, Ft Gordon, GA USA
[2] USA, Endodont Residency Program, Ft Gordon, GA USA
[3] Dwight D Eisenhower Army Med Ctr, Dept Clin Invest, Ft Gordon, GA USA
关键词
D O I
10.1097/00004770-200402000-00010
中图分类号
R78 [口腔科学];
学科分类号
1003 ;
摘要
The purpose of this study was to evaluate the potential of using mineral trioxide aggregate as a root canal filling material by comparing its apical sealing ability with that of laterally condensed guttapercha with sealer and high-temperature thermo-plasticized gutta-percha with sealer in extracted bovine teeth. Sixty bovine incisors with single canals were prepared in a standard manner using LightSpeed instruments, randomly divided into three groups of 20 teeth, and obturated. The sealing ability of each technique was assessed by immersion in 1% methylene blue dye for 3 days. The teeth were cleared, and the linear extent of dye penetration was measured with a stereomicroscope. Data were analyzed by the Kruskal-Wallis one-way ANOVA followed by Dunn's test. Canals filled with laterally condensed gutta-percha or thermoplasticized gutta-percha showed significantly less apical dye penetration than canals obturated with mineral trioxide aggregate (p < 0.001). There was no significant difference in leakage between the laterally condensed group and the thermoplasticized group. The results suggest that gutta-percha obturation may provide an apical seal that is superior to MTA.
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收藏
页码:103 / 106
页数:4
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