title: A comparative study on the frequency, location, and direction of accessory canals filled with the hydraulic vertical condensation and continuous wave of condensation techniques.
abstract: The present study compared the frequency, location, and direction of accessory canals filled with two different filling techniques. Sixty-four mandibular first molars were accessed, prepared, and divided into two groups of 32 teeth each. The teeth from group A and group B were filled using the hydraulic vertical condensation technique and the continuous wave of condensation technique, respectively. The specimens were then decalcified, dehydrated, rendered transparent, and analyzed by three independent evaluators. There was no significant difference (t test, p < 0.05) between the two groups in relation to the total number of filled ramifications. Moreover, there was no significant difference among the three thirds of the roots in relation to the number of filled ramifications (analysis of variance, p < 0.05). The filled ramifications were more frequently detected toward lingual, buccal, distal-lingual, and distal-buccal directions. It was concluded that the two filling techniques are not different in relation to the frequency, location, and direction of the ramifications filled.
authors.affiliation: Department of Endodontics, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil. fabormiga@metalmat.ufrj.br
authors.forename: Fabiola Ormiga Galvão
authors.initials: FO
authors.lastname: Barbosa
authors.forename: Heloísa
authors.initials: H
authors.lastname: Gusman
authors.forename: Marcos Cesar
authors.initials: MC
authors.lastname: Pimenta de Araújo
mesh_terms: D003786:Dental Pulp Cavity / Q000033:anatomy & histology*; D006171:Gutta-Percha; D006801:Humans; D008963:Molar; D012387:Root Canal Filling Materials; D012389:Root Canal Obturation / Q000379:methods*; D015035:Zinc Oxide-Eugenol Cement
chemical_list: D012387:Root Canal Filling Materials; D015035:Zinc Oxide-Eugenol Cement; C076543:Kerr Pulp Canal Sealer; D006171:Gutta-Percha