|2 Doses Pack: 0.28g (2x0.14g)
Release of calcium ions: allows formation of mineralized tissues
Highly alcaline: prevents bacterial growth
Low solubility: may be used directly on pulp and periapical tissues
Compressive strength: 44.2 MPa
May be used as base for restorations
Expansion after hydration: seals cavities completely
Setting time (15 minutes): may be used in single appointment
Radiopaque: allows radiographic control
Biocompatibility: may be used directly on living tissues
New formation of cement: only dental material with this capacity
Remineralization of dentin: allows formation of biologic barrier
Biologic sealing of perforations: complete healing of periapical tissues
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.
Treatment of root canal perforation
Treatment of furcation perforation
Treatment of root canal resorption
Retrofilling in periapical surgeries
Direct pulp capping
Intracoronal barrier during tooth bleaching
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.
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.
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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