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Use of a matrix for apexification procedure with mineral trioxide aggregateKeywords: Apexification, artificial barrier, calcium sulfate, mineral trioxide aggregate Abstract: This articles describes a technique for placement of a matrix barrier prior to use of mineral trioxide aggregate (MTA) as an artificial root-end barrier. The technique also demonstrates the use of a delivery system utilizing large-bore needles for the predictable and precise placement of the barrier materials at the apex of the tooth.
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