title: Mineral trioxide aggregate as an alternative treatment for intruded permanent teeth with root resorption and incomplete apex formation.
abstract: A case of extensive crown fracture associated with intrusion of the permanent maxillary central incisors in an 8-year-old boy is reported. The treatment of both injured teeth included attempts of apexification and arrest of root resorption with calcium hydroxide. After 8 months of the trauma, there was no calcified barrier formation in the apex. Mineral trioxide aggregate (MTA) was then used as a filling material. At 15-month follow up, the teeth were asymptomatic and correctly sealed, the external inflammatory root resorption had stopped, and the radiolucent image had disappeared, which meant the initial healing of the periapical lesion. MTA may be considered as an alternative option for the treatment of traumatized and immature permanent teeth.
authors.affiliation: Bauru School of Dentistry, University of São Paulo, Bauru, Brazil.
authors.forename: Thais Marchini
authors.initials: TM
authors.lastname: Oliveira
authors.forename: Vivien Thiemy
authors.initials: VT
authors.lastname: Sakai
authors.forename: Thiago Cruvinel
authors.initials: TC
authors.lastname: Silva
authors.forename: Carlos Ferreira
authors.initials: CF
authors.lastname: Santos
authors.forename: Ruy Cesar Camargo
authors.initials: RC
authors.lastname: Abdo
authors.forename: Maria Aparecida Andrade Moreira
authors.initials: MA
authors.lastname: Machado
mesh_terms: D017607:Aluminum Compounds / Q000494:pharmacology; D001642:Bicycling / Q000293:injuries; D017610:Calcium Compounds / Q000494:pharmacology; D002126:Calcium Hydroxide; D002648:Child; D004338:Drug Combinations; D006801:Humans; D007180:Incisor / Q000293:injuries*; D008297:Male; D008437:Maxilla; D010087:Oxides / Q000494:pharmacology; D012387:Root Canal Filling Materials / Q000494:pharmacology; D012390:Root Canal Therapy; D012391:Root Resorption / Q000150:complications / Q000628:therapy; D017640:Silicates / Q000494:pharmacology; D019227:Tooth Apex / Q000187:drug effects / Q000254:growth & development; D014084:Tooth Avulsion / Q000150:complications / Q000628:therapy*; D019228:Tooth Crown / Q000293:injuries*; D014078:Tooth Eruption; D014082:Tooth Fractures / Q000150:complications / Q000628:therapy*
chemical_list: D017607:Aluminum Compounds; D017610:Calcium Compounds; D004338:Drug Combinations; D010087:Oxides; D012387:Root Canal Filling Materials; D017640:Silicates; C086631:mineral trioxide aggregate; D002126:Calcium Hydroxide