title: A comparison of gutta-percha and Resilon in the obturation of lateral grooves and depressions.
abstract: The purpose of this study was to compare the flow of gutta-percha and Resilon (RealSeal; SybronEndo, Orange, CA) into lateral grooves and depressions in the apical 7 mm of a root canal by using warm vertical compaction. A split-tooth model was constructed with lateral grooves and depressions prepared at 1, 3, 5, and 7 mm from working length (WL). Groups A, B, and C were obturated with gutta-percha with a System B plugger placed 5 mm, 4 mm, and 3 mm from WL. Groups D, E, and F were obturated with Resilon with a System B plugger placed 5 mm, 4 mm, or 3 mm from WL. Gutta-percha and Resilon showed similar movement into lateral grooves and dentin depressions, with a significant difference found only with increased flow of gutta-percha into depressions at the 1-mm level when the System B plugger was placed 3 mm or 4 mm from WL (p <or= 0.05).
authors.affiliation: Department of Endodontology, School of Dentistry, Oregon Health & Science University, Portland, Oregon 97239-307, USA. karrnicole@yahoo.com <karrnicole@yahoo.com>
authors.forename: Nicole
authors.initials: N
authors.lastname: Alicia Karr
authors.forename: J Craig
authors.initials: JC
authors.lastname: Baumgartner
authors.forename: J Gordon
authors.initials: JG
authors.lastname: Marshall
mesh_terms: D003481:Cuspid / Q000033:anatomy & histology; D003786:Dental Pulp Cavity / Q000033:anatomy & histology; D003804:Dentin / Q000033:anatomy & histology; D006171:Gutta-Percha; D006801:Humans; D012387:Root Canal Filling Materials; D012389:Root Canal Obturation / Q000379:methods*; D019227:Tooth Apex / Q000033:anatomy & histology
chemical_list: D012387:Root Canal Filling Materials; C486892:resilon sealer; D006171:Gutta-Percha