title: Marginal gingiva discoloration by gray MTA: a case report.
abstract: Perforation of the root canal during insertion of an intracanal post is a complication of endodontic therapy. Mineral trioxide aggregate (MTA) has been successfully used a sealer in these situations. This material has recently been formulated in white color, allowing its application in areas of esthetic concern. This is a clinical case report of a root perforation sealed with gray MTA that resulted in discoloration of the marginal gingiva. Treatment consisted of replacing gray MTA with white MTA with the aid of a dental operating microscope, producing satisfactory esthetic results.
authors.affiliation: Department of Restorative Dentistry, Araraquara Dental School, São Paulo State University, UNESP, Araraquara, SP, Brazil.
authors.forename: Eduardo Antunes
authors.initials: EA
authors.lastname: Bortoluzzi
authors.forename: Gustavo Sivieri
authors.initials: GS
authors.lastname: Araújo
authors.forename: Juliane Maria
authors.initials: JM
authors.lastname: Guerreiro Tanomaru
authors.forename: Mário
authors.initials: M
authors.lastname: Tanomaru-Filho
mesh_terms: D000328:Adult; D017607:Aluminum Compounds / Q000009:adverse effects*; D017610:Calcium Compounds / Q000009:adverse effects*; D003762:Dental Instruments / Q000009:adverse effects; D004338:Drug Combinations; D005260:Female; D005882:Gingival Diseases / Q000139:chemically induced*; D006801:Humans; D010087:Oxides / Q000009:adverse effects*; D010859:Pigmentation Disorders / Q000139:chemically induced*; D019233:Retreatment; D012387:Root Canal Filling Materials / Q000009:adverse effects*; D018915:Root Canal Preparation / Q000009:adverse effects / Q000295:instrumentation*; D017640:Silicates / Q000009:adverse effects*; D018677:Tooth Injuries / Q000150:complications* / Q000628:therapy; D014092:Tooth Root / Q000293:injuries*
chemical_list: D017607:Aluminum Compounds; D017610:Calcium Compounds; D004338:Drug Combinations; D010087:Oxides; D012387:Root Canal Filling Materials; D017640:Silicates; C086631:mineral trioxide aggregate