SURGICAL RETREATMENT OF UNSUCCESSFULLY ENDODONTICALLY TREATED TEETHWITH POST RECONSTRUCTION
Abstract:
In many clinical cases, failed endodontic treatment is associated with post reconstructions. The apical part of the canal is unsealed and apical surgery is needed. The aim of the study was to test a surgical technique that allows retrograde retreatment on more than 3 mm. Material and methods: After cementing posts on nine single rooted mandibular teeth, apical microsurgery was performed. A special ultrasonic tip was used to access more than 3 mm. The teeth were sealed using warm gutta-percha and an apical resin cover. Radiographical and CBCT exams were performed. Results: 8 teeth out of 9 were optimally sealed on their entire length between the apical portion of the post and sectioned surface of the apex. Conclusions: Using an ultrasonic tip, such as the one used in this study, might allow the access on more than 3mm. Warm injected gutta-percha is a very easy and helpful technique for retrograde sealing.
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