Fracchia, David Emilio GuttaCore Pink, Thermafil and Warm Vertically compacted gutta-percha retreatment: Time required and quantitative evaluation by using ProTaper files. [electronic resource] - Dental materials journal Mar 2020 - 229-235 p. digital Publication Type: Journal Article ISSN: 1881-1361 Standard No.: 10.4012/dmj.2019-008 doi Subjects--Topical Terms: Dental Pulp CavityGutta-PerchaHumansRetreatmentRoot Canal Filling MaterialsRoot Canal ObturationRoot Canal Preparation