title: Filling of simulated lateral canals with gutta percha or resilon when using thermomechanical compaction.
abstract: OBJECTIVE
  To evaluate the filling of simulated lateral canals with gutta-percha or Resilon when using thermomechanical compaction.
  
  
  METHODS
  Forty-five human single-rooted teeth were subjected to tooth decalcification and clearing.
  
  
  METHODS
  After root canal preparation, artificial lateral canals were made at 2, 5, and 8 mm from the working length (WL), corresponding to the apical, middle, and cervical thirds, respectively. The specimens were divided (n = 15) according to the filling material: Dentsply gutta-percha (GD), Odous gutta-percha (GO), and Resilon cones (RE). Root canals were obturated by thermomechanical compaction using a #45 compactor and no sealer. Lateral canals were analyzed by digital radiography and digital images after tooth decalcification and clearing using the Image Tool software.
  
  
  METHODS
  Data were subjected to the Kruskal-Wallis and Dunn tests at 5% significance.
  
  
  RESULTS
  In the coronal third, RE and GO presented more filling ability than GD (P < 0.05). In the middle and apical thirds, RE presented the best results.
  
  
  CONCLUSIONS
  Resilon demonstrated filling ability as material for root canal obturation by using thermomechanical compaction.
authors.affiliation: Department of Restorative Dentistry, Araraquara Dental School, UNESP - Univ Estadual Paulista, Araraquara, Brazil.
authors.forename: Arnaldo Sant'
authors.initials: AS
authors.lastname: Anna-Júnior
authors.affiliation: Department of Restorative Dentistry, Araraquara Dental School, UNESP - Univ Estadual Paulista, Araraquara, Brazil.
authors.forename: Mário
authors.initials: M
authors.lastname: Tanomaru-Filho
authors.affiliation: Department of Dentistry, Bauru Dental School, USP - Univ of São Paulo, Bauru, São Paulo, Brazil.
authors.forename: Marco Antônio Hungaro
authors.initials: MA
authors.lastname: Duarte
authors.affiliation: Department of Restorative Dentistry, Araraquara Dental School, UNESP - Univ Estadual Paulista, Araraquara, Brazil.
authors.forename: Guilherme Ferreira
authors.initials: GF
authors.lastname: da Silva
authors.affiliation: Department of Restorative Dentistry, Araraquara Dental School, UNESP - Univ Estadual Paulista, Araraquara, Brazil.
authors.forename: Roberta
authors.initials: R
authors.lastname: Bosso
authors.affiliation: Department of Restorative Dentistry, Araraquara Dental School, UNESP - Univ Estadual Paulista, Araraquara, Brazil.
authors.forename: Juliane M
authors.initials: JM
authors.lastname: Guerreiro-Tanomaru
keywords: Gutta-percha; resilon; root canal filling; simulated lateral canals; thermomechanical compaction