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Treatment of a perforating inflammatory external root resorption with mineral trioxide aggregate and histologic
Juan Gonzalo Olivieri1, Fernando Duran-Sindreu, Montse Mercadé
1Department of Restorative Dentistry and Endodontics, Universitat Internacional de Catalunya, Barcelona, Spain.
Introduction:
Inflammatory external root resorption (IERR) requires damage or loss of the protective layer and an inflammatory process in the unprotected root surface. Infection of the pulp space can occur after a serious injury and stimulate an inflammatory response. When the inflammatory stimulus is long-standing, the destructive phase will continue until the stimulation is removed.
Methods:
This article describes the use of cone-beam computed tomography scanning in the diagnosis and management of a perforating IERR in tooth #10 with a 17-month follow-up and histologic examination after extraction for orthodontic reasons.
Results:
The histologic examination showed a cementum-like tissue interposed within the dentin defect. The cementum-like tissue was eosinophilic and irregular or poorly demarcated in some parts. Fibrous ligament tissue and no inflammatory response could be identified.
Conclusions:
Mineral trioxide aggregate was shown to be suitable for the treatment of perforating IERR, and this finding agrees with the results observed in different studies conducted with animals.