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Predictive factors for pulp necrosis in traumatized primary incisors: a longitudinal study.
MedLine Citation:
PMID:  23331274     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
BACKGROUND: This study aimed to assess factors associated with occurrence of pulp necrosis (PN) in traumatized primary incisors, which may contribute to the prognosis of this outcome. DESIGN: Data were collected by single examiner through the analysis of clinical files of traumatized patients. The occurrence of PN in traumatized teeth was the evaluated outcome. Poisson regression analysis was applied to calculate the relative risk (RR) and the respective 95% confidence interval. RESULTS: Five hundred and twenty-one files were assessed, summing up 727 traumatized primary incisors. The proportion of teeth affected by PN was 23.8%. Multiple regression analysis indicated the following factors as positively associated with PN: trauma with displacement, pulp exposure fracture, self-report of pain, yellow, grey and brown crown discoloration, internal root resorption, and bone loss. Trauma in 4- to 5-year old and more than 5-year-old children, pulp canal obliteration, and external root resorption with bone formation were negatively associated with PN. CONCLUSIONS: Teeth that suffered more aggressive injuries, pain, some types of discoloration, and other radiographic findings (for instance, internal root resorption) are positively associated with the occurrence of PN. On the other hand, trauma in older children, canal obliteration, or external resorption show less probability of PN.
Authors:
Janaina Merli Aldrigui; Isabela Caparelli Cadioli; Fausto Medeiros Mendes; José Leopoldo Ferreira Antunes; Marcia Turolla Wanderley
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2013-1-21
Journal Detail:
Title:  International journal of paediatric dentistry / the British Paedodontic Society [and] the International Association of Dentistry for Children     Volume:  -     ISSN:  1365-263X     ISO Abbreviation:  Int J Paediatr Dent     Publication Date:  2013 Jan 
Date Detail:
Created Date:  2013-1-21     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9107511     Medline TA:  Int J Paediatr Dent     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
© 2013 John Wiley & Sons Ltd, BSPD and IAPD.
Affiliation:
Department of Orthodontics and Pediatric Dentistry, School of Dentistry, University of São Paulo - USP, São Paulo, Brazil.
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