title: Long-term sealing efficacy of four root surface sealing materials used in endodontic leakage studies.
abstract: Fifty extracted human maxillary anterior teeth were biomechanically instrumented and divided into five equal groups, four experimental and a control. The teeth in the experimental groups had their root surface coated with one of four sealants; epoxy, casting resin, sticky wax, or nail polish. The roots of the remaining teeth were not coated and served as controls. All of the teeth were mounted in the caps of scintillation vials. Five microliters of [3H]uridine were deposited in the root canal space and disintegration counts were obtained over time periods of 1, 4, 8, 12, and 36 wk. At the conclusion of the experiment, sticky wax was demonstrated to provide a superior seal (p < 0.0001).
authors.affiliation: Department of Endodontics, College of Dentistry, University of Illinois at Chicago.
authors.forename: E L
authors.initials: EL
authors.lastname: Jacobsen
authors.forename: L G
authors.initials: LG
authors.lastname: Karras
authors.forename: E A
authors.initials: EA
authors.lastname: BeGole
authors.forename: J C
authors.initials: JC
authors.lastname: Daniel
mesh_terms: D000704:Analysis of Variance; D003738:Dental Cements; D003763:Dental Leakage; D004853:Epoxy Resins; D005069:Evaluation Studies as Topic; D006801:Humans; D007764:Lacquer; D008422:Materials Testing / Q000379:methods; D012390:Root Canal Therapy; D013499:Surface Properties; D013501:Surface-Active Agents; D014092:Tooth Root
chemical_list: D003738:Dental Cements; D004853:Epoxy Resins; D013501:Surface-Active Agents