mineral trioxide aggregate

[tirath]

An experimental material, mineral trioxide aggregate (MTA), has recently been investigated as a potential alternative restorative material to the presently used materials in endodontics. Several in vitro and in vivo studies have shown that MTA prevents microleakage, is biocompatible, and promotes regeneration of the original tissues when it is placed in contact with the dental pulp or periradicular tissues. This article describes the clinical procedures for application of MTA in capping of pulps with reversible pulpitis, apexification, repair of root perforations nonsurgically and surgically, as well as its use as a root-end filling material.

        

[sushantpatel_doc]

Why is MTA not used extensively in dental practice? What are the possible drawbacks?

        

[Anonymous]

high cost

sushantpatel_doc wrote:

Why is MTA not used extensively in dental practice? What are the possible drawbacks?

        

[tirath]

Disadvantages of MTA
– Difficult manipulation
– High cost
– Irreversible application

        

[tirath]

Advantages of MTA
– High biocompatibility
– Hydrophilic
– Radio-opaque
– Highly alkaline pH (Bacteriostatic)
– Excellent sealing ability (Low marginal leakage)
– Low solubility

        

[tirath]

What’s so Unique About MTA?
Materials used to repair perforations, seal the retro-preparation in surgical endodontics, close open apices or to protect the pulp in direct pulp capping, are inevitably in contact with blood and other tissue fluids. This moisturizing effect may be an important factor that has major effects on the physical properties and sealing abilities of the restorative materials. MTA is however not affected by moisture or blood contamination: The presence or absence of blood seems not to affect the sealing ability of the mineral trioxide aggregate.

        

[Author]

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