Nonsurgical Endodontic Retreatment of Advanced Inflammatory External Root Resorption Using Mineral Trioxide Aggregate Obturation

Shivani Utneja,Sangeeta Talwar,Gaurav Garg,Shipra Arora

doi:10.1155/2012/624792

Shivani Utneja, Sangeeta Talwar + Show 2 more

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https://doi.org/10.1155/2012/624792

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Abstract

Inflammatory external root resorption is one of the major complications after traumatic dental injury. In this case report, we describe treatment of a maxillary central incisor affected by severe, perforating external root resorption. An 18-year-old patient presented with a previously traumatized, root-filled maxillary central incisor associated with pain and sinus tract. Radiographic examination revealed periradicular lesion involving pathologic resorption of the apical region of the root and lateral root surface both mesially and distally. After removal of the root canal filling, the tooth was disinfected with intracanal triple antibiotic paste for 2 weeks. The antibiotic dressing was then removed, and the entire root canal was filled with mineral trioxide aggregate. The endodontic access cavity was restored with composite resin. After 18 months, significant osseous healing of the periradicular region and lateral periodontium had occurred with arrest of external root resorption, and no clinical symptoms were apparent.

Highlights

Inflammatory external root resorption (IERR) is a pathologic condition caused by several etiologic factors including traumatic dental injury
IERR is initiated by mechanical trauma, resulting in the destruction of cementoblasts and loss of precementum and sometimes cementum in areas of the root surface
The treatment protocol for IERR should involve elimination of bacteria and their byproducts from the root canal system and dentinal tubules to stop the inflammatory processes involving the root surface to allow the regeneration of periodontium [16]

Summary

Introduction

Inflammatory external root resorption (IERR) is a pathologic condition caused by several etiologic factors including traumatic dental injury. Endodontic treatment should be initiated promptly to prevent further hard tissue loss and root perforation [5]. Mineral trioxide aggregate (MTA) has emerged as a reliable bioactive material with extended applications in endodontics that include obturation of the root canal space owing to its superior physiochemical properties [7].

Results

Conclusion