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Angelus MTA - A super treatment for accidents and endodontic complications
Properties of MTA
Chemical
Physical
Biological
Ions Calcium Release
Enhances formation of mineralized tissues and provides biological seal of perforations and total repair of damaged periradicular tissues
Hydrophilic
Can be used in humid areas without losing properties
High alkalinity
Antibacterial properties
Low solubility
Does not allow leakage
Calcium oxide
Promotes tissue biocompatibility
Aggregated oxides
Great compressive strength
High radiopacity
Higher radiopacity than that of dentin, allowing excellent radiographic visualization
Setting time of 15 minutes
Shorter setting time than similar cements
Benefits
1. What is the difference between Gray MTA and White MTA?
White MTA has less iron oxide in its composition. This substance is the responsible for the darker color of the Gray MTA. Such reduction in the levels of iron oxide does not interfere with the great properties of the cement MTA.
2. Which are the indications of MTA?
Treatment of root canal perforation;
Treatment of furcation perforation;
Treatment of root canal resorption;
Retrofilling in periapical surgeries;
Direct pulp capping;
Pulpotomy;
Apexigenesis;
Apexification;
Intracoronal barrier during tooth bleaching;
Apical plug.
3. How is MTA applied?
The consistency of MTA is different when compared to conventional dental materials. Its application may be performed with insertion spatulas, amalgam carriers or instruments specially designed for MTA handling (e.g., MTA Carrier and MAp System). MTA should never be used with a Lentulo spiral because it needs to be directly placed in the area to be repaired.
4. Why is the setting time of MTA Angelus faster than of the other brands?
Since 2002, the setting time of MTA Angelus was modified from 2.5 hours to 15 minutes. This reduced setting time is exclusive of Angelus. The concentration of calcium sulfate, which is the substance responsible for the long setting time, was decreased. MTA Angelus allows final restorative treatment in the same clinical appointment of MTA insertion.
5. Can MTA be used as a final root canal final filler?
MTA does not have a proper consistency (flow) for final root canal filling. Also, after its setting, removal would be extremely difficult if reentry is necessary.
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