Abstract
Background: Regenerative endodontic procedures have become increasingly popular in recent years. This paper reports the use of regenerative endodontics in the treatment of a large cyst-like inflammatory periapical lesion in an immature permanent tooth. Case report: A 12-year-old boy with a submucosal abscess in the upper jaw visited the Department of Pediatric Dentistry. Previous injury in the area was reported. The X-ray showed a well-defined large osteolytic lesion engaging the apical part of the root. The initial treatment plan included creation of MTA plug and apical surgery. Throughout the treatment course, the patient skipped his appointments and returned 8 months later. The initial working length couldn't be reached, and a hard barrier was present in the middle portion of the root canal. The CBCT showed that the size of the lesion had decreased significantly. Bone-like tissue with a density similar to surrounding spongiosis was observed in the root canal. There was no change in the contour and length of the root walls. Conclusion: Regenerative endodontics could be successfully used in the treatment of some immature permanent with necrotic pulp and large periapical lesions.
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