title: A comparison of three different root canal sealers when used to obturate a moisture-contaminated root canal system.
abstract: Sealing ability of three classes of endodontic sealers, in moisture-contaminated canals, was evaluated. A total of 120 single-rooted extracted teeth were divided into three groups. The groups were obturated with either Procosol, Sealapex, or Ketac-Endo using saline as a moisture contaminant in all cases. Half (20 teeth) of each group was placed in a saline storage medium for 9 months. The remainder of the samples were placed in India ink, under a vacuum, cleared, and the amount of dye penetration measured under magnification. The stored samples were similarly treated after the 9-month storage period. In a moisture-contaminated canal, Procosol exhibited the least amount of apical leakage, followed by Sealapex, then Ketac-Endo. There was no significant difference in the amount of dye penetration after 9 months of storage over that found initially, which indicates that the deleterious effects of moisture contamination occur during the initial placement and setting reaction.
mesh_terms: D000704:Analysis of Variance; D001729:Bismuth; D002126:Calcium Hydroxide; D003763:Dental Leakage; D004340:Drug Contamination; D004356:Drug Storage; D005069:Evaluation Studies as Topic; D005899:Glass Ionomer Cements; D006171:Gutta-Percha; D006801:Humans; D012117:Resins, Synthetic; D012387:Root Canal Filling Materials; D012389:Root Canal Obturation / Q000379:methods; D012459:Salicylates; D014867:Water; D015034:Zinc Oxide
chemical_list: D005899:Glass Ionomer Cements; C074934:Ketac Endo; D012117:Resins, Synthetic; D012387:Root Canal Filling Materials; D012459:Salicylates; D014867:Water; C055601:Sealapex; C035615:Proco-Sol; D006171:Gutta-Percha; D002126:Calcium Hydroxide; D015034:Zinc Oxide; D001729:Bismuth