title: Perforation repair and one-step apexification procedures.
abstract: As with any dental treatment, procedural mishaps can occur during root canal therapy. One such occurrence is the perforation of a root or pulpal floor. After a perforation occurs, the goals are to "sterilize" (decontaminate) the site and then seal the perforation. The material most widely used in endodontics to seal perforations is mineral trioxide aggregate (MTA). MTA us extremely biocompatible, and it has been shown historically that osteoidlike material grows right into MTA. The technique of one-step apexification offers an alternative to draw-out cases with several medicament-changing appointments that often result in a failed attempt at root-end closure. With the favorable histologic response of MTA, this material is the best current choice for this procedure. Completion of these cases in an effective and efficient way allows for permanent restorations to be done in a more timely manner, prolonging the longevity of these teeth.
authors.affiliation: Department of Endodontics, School of Dental Medicine, University of Pennsylvania, 240 South 40th Street, Philadelphia, PA 19104-6030, USA. sikratch@aol.com
authors.forename: Samuel I
authors.initials: SI
authors.lastname: Kratchman
mesh_terms: D017607:Aluminum Compounds / Q000627:therapeutic use*; D001672:Biocompatible Materials / Q000627:therapeutic use*; D017610:Calcium Compounds / Q000627:therapeutic use*; D002133:Calcium Sulfate / Q000627:therapeutic use; D003786:Dental Pulp Cavity / Q000187:drug effects / Q000293:injuries*; D003809:Dentin, Secondary / Q000187:drug effects; D004338:Drug Combinations; D005500:Follow-Up Studies; D006801:Humans; D010087:Oxides / Q000627:therapeutic use*; D019233:Retreatment; D012387:Root Canal Filling Materials / Q000627:therapeutic use*; D012388:Root Canal Irrigants / Q000627:therapeutic use; D012389:Root Canal Obturation / Q000295:instrumentation; D012390:Root Canal Therapy / Q000379:methods*; D017640:Silicates / Q000627:therapeutic use*; D019227:Tooth Apex / Q000187:drug effects*; D014945:Wound Healing
chemical_list: D017607:Aluminum Compounds; D001672:Biocompatible Materials; D017610:Calcium Compounds; D004338:Drug Combinations; D010087:Oxides; D012387:Root Canal Filling Materials; D012388:Root Canal Irrigants; D017640:Silicates; C086631:mineral trioxide aggregate; D002133:Calcium Sulfate