title: An in vitro evaluation of the sealing ability of a new root-canal-obturation system.
abstract: In this study the sealing ability of a new urethane methacrylate resin-based sealer, EndoRez, was evaluated using a fluid-filtration model. Sixty-four single-rooted lower bicuspids were decoronated, instrumented, and divided into 3 groups of 20 each with 4 teeth used as controls. In group A, the roots were obturated with EndoRez and a single cone of gutta-percha, group B with AH Plus and a single cone of gutta-percha, and group C was obturated using gutta-percha with warm vertical compaction and AH Plus sealer. All specimens were allowed to set for 7 days in 100% humidity at 37 degrees C. The groups were compared for differences in the amount of leakage (mm/h) using a Chi-square test. The leakage of group A was significantly higher at p = 0.01 than the other two groups. There was no significant difference in leakage between groups B and C.
authors: Department of Endodontics, Nova Southeastern University School of Dental Medicine, Ft Lauderdale, FL, USA.
authors: Brian P
authors: BP
authors: Kardon
authors: Sergio
authors: S
authors: Kuttler
authors: Patrick
authors: P
authors: Hardigan
authors: Samuel O
authors: SO
authors: Dorn
mesh_terms: D001641:Bicuspid; D003188:Composite Resins; D003763:Dental Leakage / Q000517:prevention & control; D004853:Epoxy Resins; D006801:Humans; D016015:Logistic Models; D008689:Methacrylates; D011140:Polyurethanes; D012387:Root Canal Filling Materials; D012389:Root Canal Obturation / Q000379:methods*
chemical_list: D003188:Composite Resins; C481259:EndoRez; D004853:Epoxy Resins; D008689:Methacrylates; D011140:Polyurethanes; D012387:Root Canal Filling Materials; C534916:epoxy resin-based root canal sealer; C029824:urethane dimethacrylate luting resin