title: A scanning electron microscopic study of the efficacy of various endodontic instruments.
mesh_terms: D003646:Debridement / Q000295:instrumentation; D003782:Dental Pulp / Q000648:ultrastructure; D003786:Dental Pulp Cavity / Q000648:ultrastructure; D006801:Humans; D066298:In Vitro Techniques; D008855:Microscopy, Electron, Scanning; D012390:Root Canal Therapy / Q000295:instrumentation*