Repair of a root resorption lesion. A case report.

An extensive root surface lesion that presented both supra- and subgingival components was successfully treated with the use of glass ionomer cement to restore the lesion, and facilitate subsequent endodontic therapy and restoration. A coronally-positioned flap covered the repaired/restored lesion, approximately 6 mm x 10 mm in dimension. At 6 months following placement of the restoration, all but 1 mm of the restoration appeared covered, with probing depths <3 mm and no clinical signs of inflammation. Glass ionomer cement appears to be a viable, biocompatible material to restore subgingival root surface lesions.