title: A home-made apex locator.
authors.forename: S L
authors.initials: SL
authors.lastname: Selwyn
mesh_terms: D003786:Dental Pulp Cavity / Q000033:anatomy & histology*; D004867:Equipment Design; D006801:Humans; D009811:Odontometry / Q000295:instrumentation; D012390:Root Canal Therapy / Q000295:instrumentation*