| Literature DB >> 14716265 |
Caroline R A Valois1, Edson D Costa.
Abstract
The purpose of this study was to compare the ability of different thicknesses of mineral trioxide aggregate (MTA) to prevent apical leakage through the use of a protein-dye complex with Coomassie Brilliant Blue G. Sixty-four teeth were divided into 4 groups, then filled with MTA to depths of 1, 2, 3, or 4 mm. Two teeth served as the positive controls. Another 2 teeth served as the negative controls. Root-filled teeth were mounted in an apparatus and then challenged with protein solution. The evaluation was conduced at 24-hour intervals for 60 days. The 1-mm-thick MTA was the least effective in preventing apical leakage (P <.05). No significance difference was found between 2- and 3-mm-thick MTA (P >.05). Four-millimeter-thick MTA was significantly more effective than the other thicknesses tested (P <.05). The results of this study suggest that the thickness of 4 mm is most adequate for the use of MTA as a root-end filling material.Entities:
Mesh：
Substances：
Year: 2004 PMID： 14716265 DOI： 10.1016/s1079-2104(03)00359-7
Source DB: PubMed Journal: Oral Surg Oral Med Oral Pathol Oral Radiol Endod ISSN： 1079-2104