title: Root reconstructed with mineral trioxide aggregate and guided tissue regeneration in apical surgery: a 5-year follow-up.
abstract: Apical surgery should be considered as the last treatment option and employed when conventional endodontic treatment does not provide the expected result. In teeth undergoing apical surgery, the type of retrograde filling material is one of the factors interfering with the repair of periapical tissues. The material in intimate contact with the periapical tissues plays a fundamental role in the repair process. Several materials have been studied and indicated for use in apical surgery procedures, but the mineral trioxide aggregate (MTA) is still the most frequently used one. Guided tissue regeneration (GTR) techniques have been proposed as an adjunct to apical surgery to enhance bone healing. Here is reported a clinical case in which apical surgery was performed in conjunction with MTA-based root reconstruction of the maxillary right second incisor. After the apical surgery, a root-end cavity was prepared at the vestibular face of the involved tooth and filled with MTA. A bovine bone graft and a cortical collagen membrane were placed on the bone defect. After 5 years, clinical and radiographic assessments showed that the treatment was successful. It may be concluded that MTA presents favorable characteristics in adverse conditions and can be used in conjunction with GTR in cases involving root reconstruction.
authors.forename: Pedro Felício Estrada
authors.initials: PF
authors.lastname: Bernabé
authors.forename: Mariane Maffei
authors.initials: MM
authors.lastname: Azuma
authors.forename: Luciana Louzada
authors.initials: LL
authors.lastname: Ferreira
authors.forename: Eloi
authors.initials: E
authors.lastname: Dezan-Júnior
authors.forename: João Eduardo
authors.initials: JE
authors.lastname: Gomes-Filho
authors.forename: Luciano Tavares Angelo
authors.initials: LT
authors.lastname: Cintra
mesh_terms: D000328:Adult; D017607:Aluminum Compounds / Q000008:administration & dosage*; D000818:Animals; D017610:Calcium Compounds / Q000008:administration & dosage*; D002417:Cattle; D004338:Drug Combinations; D005260:Female; D005500:Follow-Up Studies; D048091:Guided Tissue Regeneration; D006801:Humans; D010087:Oxides / Q000008:administration & dosage*; D010486:Periapical Tissue / Q000601:surgery*; D017640:Silicates / Q000008:administration & dosage*
chemical_list: D017607:Aluminum Compounds; D017610:Calcium Compounds; D004338:Drug Combinations; D010087:Oxides; D017640:Silicates; C086631:mineral trioxide aggregate