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Reattachment of a subgingivally fractured central incisor tooth fragment: report of a case.

A case report of a 9-year-old boy with a fractured maxillary right incisor and ulcerated pulp at the fracture line is presented. On satisfactory completion of a root canal filling one week later, the access cavity was restored with glass ionomer cement. The fragment was reattached by a light activated hybrid composite during the flap surgery. Tetracycline hydrochloride was applied on open root surface for a better healing.