title: Endodontics in primary molars using ultrasonic instrumentation.
abstract: OBJECTIVE
  The purpose of this study, which is a series of consecutive case reports, was to describe and evaluate the protocol used in the treatment of pulpal necrosed of primary molars, used by the dental service of Social Support Foundation of the Moinhos de Vento Hospital, Porto Alegre, RS, Brazil.
  
  
  METHODS
  Eighteen primary molars in 15 children, ranging from 4 to 10 years of age, were endodontically treated using ultrasonic instrumentation.
  
  
  RESULTS
  Clinical and radiographic controls showed a success rate of 94%, considering an evaluation time of 14.1+/-6.3 months.
  
  
  CONCLUSIONS
  The use of ultrasonic instrumentation in primary molars with pulpal necrosis succeeded in reducing appointment time and showed a high success rate.
authors.affiliation: Military Police Force, Rio Grande do Sul (Brigada Militar), Santa Maria, RS, Brazil. Garcia
authors.forename: Carolina Covolo
authors.initials: CC
authors.lastname: da Costa
authors.forename: Gustavo Golgo
authors.initials: GG
authors.lastname: Kunert
authors.forename: Luiz Cesar
authors.initials: LC
authors.lastname: da Costa Filho
authors.forename: Itaboraí Revoredo
authors.initials: IR
authors.lastname: Kunert
mesh_terms: D002648:Child; D002675:Child, Preschool; D003790:Dental Pulp Necrosis / Q000628:therapy*; D005260:Female; D006801:Humans; D008297:Male; D008963:Molar; D011670:Pulpectomy / Q000295:instrumentation; D018915:Root Canal Preparation / Q000295:instrumentation*; D013997:Time Factors; D014094:Tooth, Deciduous; D014464:Ultrasonic Therapy / Q000295:instrumentation*