title: Post-traumatic complications of severe luxations and replanted teeth.
abstract: The aim of this study was to evaluate the main post-traumatic complications of severe luxation and replanted teeth using clinical and radiographic analyses.
  
  
  
  Eighty-three patients aged between 7 and 55 years old presenting 180 traumatized teeth that suffered extrusive luxation (n=67), lateral luxation (n=69), intrusive luxation (n=10) and tooth avulsion (n=34) followed by replantation were evaluated. The follow-up period was 24 months. The complications examined were: pulp canal obliteration, pulp necrosis and root resorption (infammatory and replacement). Furthermore, the relationship between time elapsed before receiving dental attendance and development of infammatory resorption was observed.
  
  
  
  Pulp necrosis was the main complication, occurring in 147 teeth (82.7%). All of the teeth that suffered intrusive luxation and tooth avulsion were diagnosed with pulp necrosis, with significant difference in comparison with another traumas (p<0.001/Fisher's exact test). Infammatory root resorption was observed in 20.5% of the cases and replacement resorption was more related to tooth replantation (94.1%), showing significant prevalence among tooth luxations (p<0.001/Fisher's exact test). In addition, it was noted that patients who seek treatment 9 weeks after the trauma episode presented 10 times more chance of developing infammatory resorption when compared with patients who seek treatment soon after dental trauma (Odds ratio test).
  
  
  
  It may be concluded that pulp necrosis was the main post-traumatic complication observed in traumatized teeth and that delay in seeking treatment may damage the prognosis of severe luxation and replanted teeth.
  
  
  
  Clinical studies describing the main complications that may affect traumatized teeth present great relevance to make the population aware of the importance of seeking immediate treatment and to alert the professional to the need for follow-up. When traumatic injuries are diagnosed and treated early, post-traumatic complications may be controlled, allowing conservation of the tooth in oral cavity.
authors: Professor Department of Restorative Dentistry, Endodontics Area Federal University of Paraíba, João Pessoa, Paraiba, Brazil Phone: 982226564, e-mail: thiagofrl@hotmail.com.
authors: Thiago Farias
authors: TF
authors: Rocha Lima
authors: Department of Dentistry, Federal University of Sergipe Lagarto, Brazil.
authors: Juliana Yuri
authors: JY
authors: Nagata
authors: Department of Restorative Dentistry, Endodontics Area Piracicaba Dental School, State University of Campinas Piracicaba, Brazil.
authors: Francisco José
authors: FJ
authors: de Souza-Filho
authors: Department of Restorative Dentistry, Endodontics Area Piracicaba Dental School, State University of Campinas Piracicaba, Brazil.
authors: Adriana
authors: A
authors: de Jesus Soares
mesh_terms: D000058:Accidental Falls; D000293:Adolescent; D000328:Adult; D000368:Aged; D001642:Bicycling / Q000293:injuries; D002648:Child; D003481:Cuspid / Q000293:injuries; D003784:Dental Pulp Calcification / Q000000981:diagnostic imaging / Q000209:etiology; D003790:Dental Pulp Necrosis / Q000000981:diagnostic imaging / Q000209:etiology; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007180:Incisor / Q000293:injuries; D008297:Male; D008875:Middle Aged; D016300:Radiography, Bitewing / Q000379:methods; D012391:Root Resorption / Q000000981:diagnostic imaging / Q000209:etiology; D013165:Splints; D061665:Time-to-Treatment; D014084:Tooth Avulsion / Q000150:complications* / Q000000981:diagnostic imaging / Q000628:therapy; D014090:Tooth Replantation / Q000379:methods*; D055815:Young Adult
keywords: Tooth injury; Root resorption; Dental pulp necrosis