title: Root canal instrumentation with a patency technique.
authors.forename: P
authors.initials: P
authors.lastname: Velvart
authors.forename: A
authors.initials: A
authors.lastname: Sigurdsson
mesh_terms: D000704:Analysis of Variance; D003762:Dental Instruments; D004867:Equipment Design; D006801:Humans; D003765:Models, Dental; D018915:Root Canal Preparation / Q000295:instrumentation* / Q000379:methods*