The use of mta in non-vital immature teeth: Three case report

Objectives: The cases reported demonstrate the healing of the non-vital immature teeth with periapical lesions by intracoronal delivery of an apical barrier of Mineral Trioxide Aggregate (MTA). Method and Materials: Three clinical cases with single root canal having open apices that had the symptoms of clinically and radiographically necrotic pulp and apical periodontitis are presented. After the application of the rubber dam and access cavity preparation, the working length was determined, root canals were mechanically cleaned by using intracanal instruments and NaOCl 3% irrigation. Then, root canals were dried with sterile paper point and calcium hydroxide was placed in the root canals. One week later, the calcium hydroxide was removed by repeated rinsing with NaOCl 3% followed by rinsing with sterile water. The root canals were dried with paper points. The MTA mixture (Dentsply, Tulsa Dental, Tulsa, USA) was placed with a small amalgam carrier by intracoronal delivery technique. Apical plugs were checked with X-rays. The rest of the root canals were obturated with gutta percha with lateral condensation in association with a root canal sealer. The teeth were then coronally sealed with composite resin. Conclusion: At 6-month and 1-year follow-up periods, the clinical and radiographic appearances of the teeth showed the resolution of the periapical lesions and almost complete bone healing. © 2010 Nova Science Publishers, Inc