RetroMTA is a hydraulic bioceramic material for root repair and vital pulp therapy. RetroMTA consists of fine, hydrophilic particles that set in the presence of water with its compressive strength reaching up to 105 MPa. It uses Calcium Zirconia complex as radio-opacifier.

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It advantages rapid setting time of 150 seconds is experimental condition but cna be con-trolled up to 10 minutes by the dentists, no washout, no discoloration and perfect sealing ability. It is efficient when used for replantation, apexification, apexogenesis and REP.

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In ex-vivo study, initial pH is 11.5 and on the 4th week, it reach up to pH 7.8~8.0.

In in-vivo study, there is high potential for biomineralization