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Evaluation of the dimensional stability of different thermoplasticized gutta‐percha fillings using simulated glass root canals
Author(s) -
Capurro M. A.,
Goldberg F.,
Balbachan L.,
Macchi R. L.
Publication year - 1993
Publication title -
dental traumatology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.82
H-Index - 81
eISSN - 1600-9657
pISSN - 1600-4469
DOI - 10.1111/j.1600-9657.1993.tb00268.x
Subject(s) - gutta percha , dentistry , shrinkage , materials science , composite material , medicine , root canal
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 tilling 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.