Using mineral trioxide aggregate powder as an apical barrier: a bacterial leakage study.

Mineral trioxide aggregate (MTA) has been used successfully for the treatment of necrotic immature teeth as part of a 2-step apical barrier. Recently, some researchers have used MTA powder instead of wet-mix MTA. It has also been used in a single-step approach in order to decrease the number of patient appointments.

A review of antibacterial agents in endodontic treatment.

Microorganisms play a major role in initiation and perpetuation of pulpal and periapical diseases. Therefore, elimination of the microorganisms present in the root canal system is the fundamental objective of endodontic treatment. The use of mechanical debridement, chemical irrigation or other antimicrobial protocols and intra-canal medicaments are critical to attain this goal.

Effect of Blood Contamination on Marginal Adaptation and Surface Microstructure of Mineral Trioxide Aggregate: A SEM Study.

Background And Aims: In various clinical situations, mineral trioxide aggregate (MTA) may come into direct contact or even be mixed with blood. The aim of the present study was to evaluate the effect of exposure to blood on marginal adaptation and surface microstructure of MTA.

Materials And Methods: Thirty extracted human single-rooted teeth were used.