title: Working length in root canal fillings.
authors.affiliation: School of Dentistry, University of Puerto Rico.
authors.forename: J C
authors.initials: JC
authors.lastname: Pagan
authors.forename: C A
authors.initials: CA
authors.lastname: Santa
authors.forename: J A
authors.initials: JA
authors.lastname: Alvarez
mesh_terms: D003786:Dental Pulp Cavity / Q000033:anatomy & histology* / Q000000981:diagnostic imaging; D006801:Humans; D009811:Odontometry / Q000379:methods*; D011859:Radiography; D012390:Root Canal Therapy / Q000379:methods*; D014092:Tooth Root / Q000033:anatomy & histology* / Q000000981:diagnostic imaging