title: Apical sealing ability of a new glass ionomer root canal sealer.
abstract: This study compared the sealing ability of Ketac Endo with and without smear layer and Tubli Seal. Thirty upper central incisors and canines with straight canals were instrumented and randomly divided into three equal groups of 10. All teeth were obturated with laterally condensed gutta-percha. An additional group of five teeth with unobturated++ root canals served as positive controls. The sealers were Tubli Seal (group A), Ketac Endo (group B), and Ketac Endo preceded by the removal of the smear layer (group C). The teeth were immersed in India ink for 7 days, centrifuged for 5 min at 3000 rpm, cleared, and then examined under a light microscope at X 50 magnification. The mean value of ink penetration for group A was 0.14 mm, for group B 0.24 mm, and for group C 0.48 mm. No statistically significant differences were observed among groups (p > 0.05).
authors.forename: F
authors.initials: F
authors.lastname: Goldberg
authors.forename: L P
authors.initials: LP
authors.lastname: Artaza
authors.forename: A
authors.initials: A
authors.lastname: De Silvio
mesh_terms: D000180:Acrylic Resins; D003763:Dental Leakage / Q000517:prevention & control*; D005069:Evaluation Studies as Topic; D005899:Glass Ionomer Cements; D006171:Gutta-Percha; D006801:Humans; D011897:Random Allocation; D012387:Root Canal Filling Materials; D012388:Root Canal Irrigants; D018915:Root Canal Preparation / Q000379:methods; D016369:Smear Layer; D018709:Statistics, Nonparametric; D015035:Zinc Oxide-Eugenol Cement
chemical_list: D000180:Acrylic Resins; D005899:Glass Ionomer Cements; C074934:Ketac Endo; D012387:Root Canal Filling Materials; D012388:Root Canal Irrigants; D015035:Zinc Oxide-Eugenol Cement; C006903:carbopol 940; C048769:tubliseal; D006171:Gutta-Percha