title: [Retrospective study of the pulp prognosis and influence factors of 242 dentin-fractured teeth].
abstract: OBJECTIVE
  To investigate the pulp prognosis and influence factors of dentin-fractured teeth.
  
  
  METHODS
  Case records of dentin-fractured teeth treated with indirect pulp capping and with more than 2 years follow-up were collected. The data related to trauma information and pulp prognosis were recorded and the influence factors were analyzed by Logistic regression.
  
  
  RESULTS
  This study consisted of 205 cases with 242 dentin-fractured teeth. Among 242 teeth, pulp necrosis occurred in 78 teeth(32.2%) and pulp calcification occurred in 3 teeth(1.2%). The success rate of indirect pulp-capping on dentin-fractured teeth was 67.8%. During observation period, 141 out of 177 young permanent teeth completed root development. The extent of fracture close to pulp was an indicator for pulp prognosis (P=0.001).
  
  
  CONCLUSIONS
  The prognosis of indirect pulp-capping on dentin-fractured permanent teeth is good. The extent of fracture close to pulp should be considered to evaluate the prognosis of the pulp.
authors.affiliation: Dept. of Pediatric Dentistry, School and Hospital of Stomatology, Peking University, Beijing 100081, China.
authors.forename: Shan-Juan
authors.initials: SJ
authors.lastname: Huang
authors.forename: Qilin
authors.initials: Q
authors.lastname: Wang
authors.forename: Jie
authors.initials: J
authors.lastname: Chen
authors.forename: Lihong
authors.initials: L
authors.lastname: Ge
authors.forename: He
authors.initials: H
authors.lastname: Liu
mesh_terms: D003782:Dental Pulp; D003790:Dental Pulp Necrosis; D003804:Dentin; D019229:Dentition, Permanent; D006801:Humans; D007180:Incisor; D011379:Prognosis; D012189:Retrospective Studies; D014082:Tooth Fractures; D014092:Tooth Root