title: Periodontal healing of a horizontal root fracture: a case report with a two-year follow-up.
abstract: BACKGROUND
  For traumatized teeth exhibiting crown-root fractures, there is a growing body of evidence that re-fastening the coronal part may result in successful treatment. However, data on the long-term impact of these bonding procedures on the periodontium are scarce. A case report of a young female patient presenting with an isogingivally- and horizontally-fractured lower incisor with a two-year follow-up is presented.
  
  
  METHODS
  The tooth fragment was reattached to the remaining root using an adhesive technique after flap elevation and endodontic therapy. No attempt was made to splint the coronal fragment to the neighboring teeth.
  
  
  RESULTS
  Despite the subgingival location of the bonding surface, uneventful periodontal healing was clinically monitored during the observation period. The coronal fragment was retained successfully for a period of more than two years.
  
  
  CONCLUSIONS
  Even for tooth fractures below the gingival margin, the combined approach of surgery and adhesive techniques can be used successfully to restore a severely traumatized tooth.
authors.affiliation: Department of Periodontology, Westphalian Wilhelm University Muenster, Würzburg, Germany. peterslk@uni-muenster.de
authors.forename: Gregor
authors.initials: G
authors.lastname: Petersilka
mesh_terms: D003188:Composite Resins / Q000737:chemistry; D001840:Dental Bonding; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007180:Incisor / Q000293:injuries*; D010519:Periodontium / Q000601:surgery; D012390:Root Canal Therapy; D013524:Surgical Flaps; D019228:Tooth Crown; D014082:Tooth Fractures / Q000628:therapy*; D014092:Tooth Root / Q000293:injuries*; D014945:Wound Healing / Q000502:physiology; D055815:Young Adult
chemical_list: D003188:Composite Resins; C452226:tetric flow composite resin