CSN EN ISO 13017 This document specifies requirements and test methods for assessing the applicability of dental magnetic attachments that provide retention, support and stabilization of removable prostheses (crowns and bridges, partial dentures and overdentures), superstructures of dental implants and orthodontic or maxillofacial prostheses including obturators. Original English text of CSN EN Standard. The price of the Standard included all amendments and correcturs.