title: A comparison of the effect of modified and nonmodified instrument tips on apical canal configuration.
authors.forename: S E
authors.initials: SE
authors.lastname: Powell
authors.forename: J H
authors.initials: JH
authors.lastname: Simon
authors.forename: B B
authors.initials: BB
authors.lastname: Maze
mesh_terms: D003786:Dental Pulp Cavity / Q000648:ultrastructure*; D004867:Equipment Design; D006801:Humans; D008953:Models, Anatomic; D012390:Root Canal Therapy / Q000295:instrumentation*