title: Mineral trioxide aggregate repair of a perforating internal resorption in a mandibular molar.
abstract: Internal resorption is a rare condition in permanent teeth that poses difficulties for treatment. The challenge is complicated further if the resorption extends beyond the confines of the root. This article describes treatment of a perforating internal resorption in the mesial root of a second lower molar, with adjacent destruction of the alveolar bone. After cleaning the root canal space and the resorption lacuna by mechanical instrumentation, irrigation, and interim calcium hydroxide dressing, the defect was filled with mineral trioxide aggregate, and the canals were obturated conventionally with gutta percha and epoxy resin sealer. At a 2-year follow-up examination, no clinical abnormalities were found, and complete resolution of the alveolar bone lesion and establishment of a new periodontal ligament were observed.
authors.affiliation: Department of Operative Dentistry and Endodontology, Dental School, Ghent University, Ghent University Hospital, Gent, Belgium.
authors.forename: Maarten
authors.initials: M
authors.lastname: Meire
authors.forename: Roeland
authors.initials: R
authors.lastname: De Moor
mesh_terms: D000328:Adult; D017607:Aluminum Compounds / Q000627:therapeutic use*; D001729:Bismuth / Q000627:therapeutic use; D017610:Calcium Compounds / Q000627:therapeutic use*; D002126:Calcium Hydroxide / Q000627:therapeutic use; D003786:Dental Pulp Cavity / Q000473:pathology*; D003790:Dental Pulp Necrosis / Q000150:complications / Q000628:therapy; D003793:Dental Restoration, Permanent / Q000379:methods; D004338:Drug Combinations; D004853:Epoxy Resins / Q000627:therapeutic use; D005500:Follow-Up Studies; D005899:Glass Ionomer Cements; D006171:Gutta-Percha / Q000627:therapeutic use; D006801:Humans; D008297:Male; D008298:Maleates; D008334:Mandible; D008963:Molar / Q000473:pathology*; D010087:Oxides / Q000627:therapeutic use*; D012387:Root Canal Filling Materials / Q000627:therapeutic use*; D012390:Root Canal Therapy / Q000379:methods; D012391:Root Resorption / Q000209:etiology / Q000628:therapy*; D017640:Silicates / Q000627:therapeutic use*; D012834:Silver / Q000627:therapeutic use; D014025:Titanium / Q000627:therapeutic use; D014945:Wound Healing / Q000502:physiology
chemical_list: D017607:Aluminum Compounds; D017610:Calcium Compounds; D004338:Drug Combinations; D004853:Epoxy Resins; D005899:Glass Ionomer Cements; D008298:Maleates; D010087:Oxides; D012387:Root Canal Filling Materials; D017640:Silicates; C086631:mineral trioxide aggregate; D012834:Silver; C028044:epoxy resin AH-26; C040964:Ketac-Fil; D006171:Gutta-Percha; D014025:Titanium; D002126:Calcium Hydroxide; D001729:Bismuth