title: Do no harm.
authors.forename: William F
authors.initials: WF
authors.lastname: Freccia
mesh_terms: D005260:Female; D005792:General Practice, Dental / Q000706:statistics & numerical data*; D006801:Humans; D008297:Male; D012390:Root Canal Therapy / Q000295:instrumentation*; D016733:Rubber Dams / Q000706:statistics & numerical data*