title: Evaluation of the dimensional stability of different thermoplasticized gutta-percha fillings using simulated glass root canals.
abstract: The dimensional stability of different thermoplasticized gutta-percha fillings was analyzed using simulated glass canals. For comparison, gutta-percha fillings obtained with the cold lateral condensation technique was used. The evaluation was done at 0 min, 2 min, 5 min, and 30 min after the filling was completed. The general analysis showed statistically significant differences between 0 min and 5 min-30 min recordings. No significant differences were found between 0 min and 2 min, and between 2 min, 5 min, and 30 min. Although warm lateral condensation resulted in a poor obturation, it was the only thermoplasticized technique analyzed that did not produce significant volumetric changes between 0 min and 30 min. All the other thermoplasticized filling techniques showed important shrinkage during cooling.
authors.forename: M A
authors.initials: MA
authors.lastname: Capurro
authors.forename: F
authors.initials: F
authors.lastname: Goldberg
authors.forename: L
authors.initials: L
authors.lastname: Balbachan
authors.forename: R L
authors.initials: RL
authors.lastname: Macchi
mesh_terms: D000704:Analysis of Variance; D006171:Gutta-Percha / Q000737:chemistry*; D012389:Root Canal Obturation / Q000379:methods*
chemical_list: D006171:Gutta-Percha