title: One step pulp revascularization treatment of an immature permanent tooth with chronic apical abscess: a case report.
abstract: OBJECTIVE
  To describe a case in which a mandibular right second premolar with a necrotic pulp, sinus tract, periradicular radiolucency and an immature apex underwent revascularization via a single treatment approach.
  
  
  CONCLUSIONS
  Revascularization procedures have the potential to heal a partially necrotic pulp, which can be beneficial for the continued root development of immature teeth. However, it is not clear which revascularization protocols are the most effective. This case report details the outcome of a successful revascularization procedure on tooth 45 (FDI) in a 12-year-old patient, eliminating the associated periapical pathosis within 19 months. The tooth was treated using coronal root irrigation with 6% NaOCl and 2% chlorhexidine without instrumentation in a single visit. The successful outcome of this case report suggests that this conservative revascularization treatment approach can preserve the vitality of the dental pulp stem cells and create a suitable environment for pulp regeneration, resulting in the completion of root maturation.
  
  
  CONCLUSIONS
  The noninstrumentation procedure using 6% NaOCl and 2% chlorhexidine coronal irrigation may help preserve the remaining vital dental pulp stem cells believed to be critical for pulp revascularization. A single visit pulp revascularization protocol can be a favourable treatment option for an immature permanent tooth with a partially necrotic pulp.
authors.affiliation: Endodontic Division, Atlantic Coast Dental Research Clinic, West Palm Beach, FL, USA.
authors.forename: S Y
authors.initials: SY
authors.lastname: Shin
authors.forename: J S
authors.initials: JS
authors.lastname: Albert
authors.forename: R E
authors.initials: RE
authors.lastname: Mortman
mesh_terms: D002648:Child; D002710:Chlorhexidine / Q000627:therapeutic use; D002908:Chronic Disease; D003751:Dental Fistula / Q000188:drug therapy; D003782:Dental Pulp / Q000098:blood supply* / Q000166:cytology; D003786:Dental Pulp Cavity / Q000098:blood supply; D003790:Dental Pulp Necrosis / Q000188:drug therapy*; D005260:Female; D006801:Humans; D018919:Neovascularization, Physiologic; D010482:Periapical Abscess / Q000188:drug therapy*; D012038:Regeneration; D012388:Root Canal Irrigants / Q000627:therapeutic use*; D018915:Root Canal Preparation / Q000379:methods; D012973:Sodium Hypochlorite / Q000627:therapeutic use; D013234:Stem Cells; D019227:Tooth Apex / Q000254:growth & development
chemical_list: D012388:Root Canal Irrigants; D012973:Sodium Hypochlorite; D002710:Chlorhexidine