Możliwości zastosowania klinicznego nowego materiału mineral trioxide aggregate (MTA) – przegląd piśmiennictwa

*Elżbieta Łuczaj-Cepowicz, Grażyna Marczuk-Kolada, Danuta Waszkiel

Streszczenie
Mineral Trioxide Aggregate (MTA) was introduced into the dental market a few years ago, as a modification of Portland cement. It contains mainly oxides of calcium, silicon, bismuth, aluminium, magnesium, sulphur, iron, phosphorus, titanium, litium and trace amounts of insoluble calcium oxide, potassium sulphate, sodium sulphate and crystalline silica. Water bound MTA in proportion 1 g of powder and 0.33 g of water forms high alkaline colloidal gel. MTA is material of high biocompatibility, low cytotoxity and good dentinogenic, cementogenic and osteogenic properties. It is also characterized by antibacterial activity, high adhesion to tissues, slight microleakage and good mechanical strength.
In vitro and in vivo MTA investigations proved that this material may be widely used in dentistry. MTA is recommended to biological treatment of permanent and deciduous teeth (direct pulp capping, partial pulpotomy, total pulpotomy) and it was confirmed in our experiments. Good results of one-visit apexification with MTA was described in literature. Authors pay attention to positive effects of treatment using mineral trioxide aggregate in canal cavity and root canal perforations and also pathological dental tissues and alveolar bone resorptions. MTA was used with success in root canal retrofillig after apical root resection.

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