Use of a matrix for apexification procedure with 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.

The Management of Crown Fracture of Immature Teeth by MTA and Calcium Hydroxide: Case Reports

“…Further, it has proven to be effective in performing the same procedure in a considerably shorter period of time with more predictable results [28]. By using MTA as a physical barrier apically, root canal filling can be placed immediately without waiting for biological response [37].…”

“…The treatment with Ca(OH) 2 is time consuming, ranging from 3 to 21 months, dependent on the diameter of open apex, the rate of tooth displacement and the tooth repositioning method after luxation injury [35]. Lemon advocated the use of a matrix when the perforation diameter is larger than 1 mm to avoid extrusion of the sealing material [28].…”

Mineral Trioxide Aggregate Apexification followed by Fiber Post reinforced and customized with Ribbond Material in Fractured Immature Maxillary Central Incisor

“…The speed of setting of the calcium sulfate mandates that the tip of the carrier be cleaned as soon as possible to avoid the tube being blocked by the set material. 13 For restoring the teeth with thin canal walls, a master fiber post and ribbond was bonded to each other with the help of bonding agent and resin cement. They were made into a single unit (monobloc) that follows the canal configuration.…”

Evaluation of Portland cement insertion techniques for apical plug confection in teeth with open apex

“…12 Insertion and condensation of material is difficult due to the small diameter of the root canal in relation to the diameter of the instruments. The most common tools used for insertion include mini amalgam carrier or MTA applicator, both of which are similar in shape and diameter, 13 lentulo drill, 14 condenser, 15 system of large bore needle 16 and gutta-percha cone. The material can be condensed in the root apex by means of a file involved in cotton, 14 sterile paper cone, 16 gutta-percha cone, 17 condensers 15 and indirect use of ultrasound.…”

“…The most common tools used for insertion include mini amalgam carrier or MTA applicator, both of which are similar in shape and diameter, 13 lentulo drill, 14 condenser, 15 system of large bore needle 16 and gutta-percha cone. The material can be condensed in the root apex by means of a file involved in cotton, 14 sterile paper cone, 16 gutta-percha cone, 17 condensers 15 and indirect use of ultrasound. 12 The objective of this study was to assess radiographically the quality of level and filling of an apical plug by means of different techniques for inserting PC.…”