title: Cyanoacrylate as a retrofilling material.
abstract: The sealing ability of cyanoacrylate as a retrograde root canal filling material was evaluated in vitro. Fifty roots were cleansed, shaped, and assigned to five groups of ten roots each. The root canals were obturated with gutta-percha and Grossman's sealer. The apical 2 mm of each root in the five groups was resected. In groups I, II, and III, retrofilling preparation was made and filled with amalgam, varnish and then amalgam, and cyanoacrylate, respectively. In group IV, a hot instrument was used to seal the gutta-percha, and in group V, a cold burnisher was used for the same purpose. All of the teeth were immersed in 1% methylene blue dye for 24 hours and sectional longitudinally; dye penetration was then measured. One-way analysis of variance performed on the means of the groups indicated that group III had the least amount of leakage (p less than 0.05). This study indicates that cyanocrylate may have potential as a retrograde filling material.
authors.affiliation: Department of Restorative Dentistry, University of California School of Dentistry, San Francisco.
authors.forename: R A
authors.initials: RA
authors.lastname: Barkhordar
authors.forename: B
authors.initials: B
authors.lastname: Javid
authors.forename: J
authors.initials: J
authors.lastname: Abbasi
authors.forename: L G
authors.initials: LG
authors.lastname: Watanabe
mesh_terms: D001047:Apicoectomy; D003487:Cyanoacrylates; D003763:Dental Leakage; D006801:Humans; D012184:Retrograde Obturation; D012387:Root Canal Filling Materials
chemical_list: D003487:Cyanoacrylates; D012387:Root Canal Filling Materials; C040229:MK 6 cyanoacrylate