title: Sealing ability of thermoplasticized gutta-percha in root canal obturation using a sectional vs. a single-phase technique.
abstract: Properly prepared straight root canals of freshly extracted maxillary canines and central incisors were used to evaluate the sealing ability of the sectional thermoplasticized gutta-percha obturation technique, with or without sealer and the single-phase thermoplasticized gutta-percha filling technique. The teeth were divided into 3 groups (A, B, C) of 20 teeth and were obturated using the 3 thermoplasticized gutta-percha techniques. Group A: single phase with sealer; group B: sectional technique without sealer; and group C: sectional technique with sealer. The obturated teeth were immersed in India ink for 3 days followed by clearing procedures. The teeth were then examined under a stereo microscope and the linear leakage was recorded. Statistical unpaired Student's t-tests showed significantly less dye penetration in teeth obturated using the sectional technique with sealer (group C) than in teeth obturated with the single-phase technique with sealer (group A) or the sectional technique without sealer (group B).
authors.forename: A
authors.initials: A
authors.lastname: Veis
authors.forename: P
authors.initials: P
authors.lastname: Beltes
authors.forename: E
authors.initials: E
authors.lastname: Liolios
mesh_terms: D006171:Gutta-Percha; D006358:Hot Temperature; D006801:Humans; D012389:Root Canal Obturation / Q000379:methods*
chemical_list: D006171:Gutta-Percha