title: Dowel space preparation in root canals filled with glass ionomer cement.
abstract: The aim of this study was to evaluate post space preparation difficulties in canals filled with Ketac Endo and with Grossman's sealer. Sixty-three single-rooted teeth were prepared using a step-back technique and were divided into four groups: group 1--canals were irrigated with 25% tannic acid and filled with Ketac Endo and a single-cone technique; group 2--canals were irrigated with 1% sodium hypochlorite and fillings done as in the previous group; group 3--canals were irrigated with 25% tannic acid and filled with Ketac Endo and one gutta-percha cone previously adapted with chloroform; and group 4--canals were irrigated with 1% sodium hypochlorite and filled with Grossman's sealer and a lateral condensation technique. After 72 h, canals post space were prepared using Peeso drills. The time required was measured in seconds and analyzed by Tukey multiple comparison test (level 5%). Post space preparation time for groups 1 to 3 was longer than for group 4 and longer for group 1 than for groups 2 to 4.
authors.affiliation: Department of Restorative Dentistry, Faculty of Odontology, National University of Tucumán, Argentina.
authors.forename: G
authors.initials: G
authors.lastname: Raiden
authors.forename: I
authors.initials: I
authors.lastname: Posleman
authors.forename: G
authors.initials: G
authors.lastname: Peralta
authors.forename: A
authors.initials: A
authors.lastname: Olguin
authors.forename: G
authors.initials: G
authors.lastname: Lagarrigue
mesh_terms: D001252:Astringents; D003738:Dental Cements; D004338:Drug Combinations; D005899:Glass Ionomer Cements; D006171:Gutta-Percha; D006801:Humans; D047348:Hydrolyzable Tannins; D011145:Polyvinyls; D011176:Post and Core Technique; D012387:Root Canal Filling Materials; D018915:Root Canal Preparation / Q000379:methods; D012973:Sodium Hypochlorite; D013997:Time Factors; D015034:Zinc Oxide
chemical_list: D001252:Astringents; D003738:Dental Cements; D004338:Drug Combinations; D005899:Glass Ionomer Cements; D047348:Hydrolyzable Tannins; C074934:Ketac Endo; D011145:Polyvinyls; D012387:Root Canal Filling Materials; C020873:Cavit G; D006171:Gutta-Percha; D012973:Sodium Hypochlorite; D015034:Zinc Oxide