title: Apical leakage of a new glass ionomer root canal sealer.
abstract: A new glass ionomer root canal sealer (Ketac-Endo) has been developed. The purpose of this study was to compare the apical leakage of Ketac-Endo and AH26 using two different filling techniques and a controlled vacuum procedure. Sixty-four extracted human maxillary anterior teeth were instrumented and divided into four groups of 15 roots each. The groups were obturated as follows: group 1, a single cone technique and Ketac-Endo; group 2, a lateral condensation technique and Ketac-Endo; group 3, a single cone technique and AH26; and group 4, a lateral condensation technique and AH26. After storage in 100% humidity at 37 degrees C for 1 wk, the root surfaces were coated with two layers of nail polish and sticky wax. All specimens were immersed in a vacuum flask containing 2% methylene blue dye solution. The air was evacuated with a vacuum pump. The roots were sectioned longitudinally, and the linear extent of dye penetration was measured. Statistical analysis revealed that there were no significant differences between any of the groups.
authors.affiliation: Department of Endodontics, Faculty of Dentistry, Ankara University, Turkey.
authors.forename: D M
authors.initials: DM
authors.lastname: Dalat
authors.forename: B
authors.initials: B
authors.lastname: Onal
mesh_terms: D001729:Bismuth; D003763:Dental Leakage; D004338:Drug Combinations; D004353:Drug Evaluation, Preclinical; D004853:Epoxy Resins; D005899:Glass Ionomer Cements; D006801:Humans; D066298:In Vitro Techniques; D008709:Methenamine; D012387:Root Canal Filling Materials; D012389:Root Canal Obturation / Q000379:methods; D012834:Silver; D014025:Titanium; D019227:Tooth Apex
chemical_list: D004338:Drug Combinations; D004853:Epoxy Resins; D005899:Glass Ionomer Cements; C074934:Ketac Endo; D012387:Root Canal Filling Materials; D012834:Silver; C028044:epoxy resin AH-26; D014025:Titanium; D008709:Methenamine; D001729:Bismuth