title: Endodontic retreatment: when and how.
authors.forename: H F
authors.initials: HF
authors.lastname: Spasser
mesh_terms: D003661:Decision Support Techniques; D006801:Humans; D019233:Retreatment; D012390:Root Canal Therapy / Q000009:adverse effects / Q000379:methods*; D017211:Treatment Failure