title: The sealing ability of a new silicone-based root canal filling material (GuttaFlow): an in vitro study using the percentage of gutta-percha-filled area.
abstract: Percentage of gutta-percha-filled area (PGFA) was used to investigate the sealing ability of GuttaFlow. A total of 80 mandibular first premolars with single canal were randomly divided into 4 Groups (n=20) according to root canal filling technique and/or material - Group1: cold lateral condensation technique; Group 2: continuous wave condensation technique; Group 3: GuttaFlow; Group 4: GuttaFlow and accessory gutta-percha cones without lateral condensation. The PGFA values of Groups 3 and 4 were significantly higher than those of Groups 1 and 2 (p<0.05), but there were no significant differences between Group 3 and Group 4 (p>0.05). It was concluded that GuttaFlow provided superior sealing ability, such that accessory gutta-percha cones became unnecessary when filling root canals with GuttaFlow.
authors.affiliation: Institute of Stomatology, College of Stomatology, Department of Conservative Dentistry and Endodontics, Nanjing Medical University, 136 Han Zhong Road, Nanjing 210029, PR China.
authors.forename: Daming
authors.initials: D
authors.lastname: Wu
authors.forename: Zhijuan
authors.initials: Z
authors.lastname: Tang
authors.forename: Guangdong
authors.initials: G
authors.lastname: Zhang
authors.forename: Weihong
authors.initials: W
authors.lastname: Liu
mesh_terms: D019412:Anatomy, Cross-Sectional / Q000379:methods; D001641:Bicuspid / Q000033:anatomy & histology; D001840:Dental Bonding; D003786:Dental Pulp Cavity / Q000033:anatomy & histology; D004129:Dimethylpolysiloxanes / Q000737:chemistry*; D004338:Drug Combinations; D004853:Epoxy Resins / Q000737:chemistry; D006171:Gutta-Percha / Q000737:chemistry*; D006801:Humans; D007091:Image Processing, Computer-Assisted / Q000379:methods; D008422:Materials Testing; D012387:Root Canal Filling Materials / Q000737:chemistry*; D012388:Root Canal Irrigants / Q000627:therapeutic use; D012389:Root Canal Obturation / Q000379:methods; D018915:Root Canal Preparation / Q000379:methods
chemical_list: D004129:Dimethylpolysiloxanes; D004338:Drug Combinations; D004853:Epoxy Resins; C515718:GuttaFlow; D012387:Root Canal Filling Materials; D012388:Root Canal Irrigants; C534916:epoxy resin-based root canal sealer; D006171:Gutta-Percha