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Part B: Supplementary Information Sheet (SIS)
FR Recognition List Number 047 Date of Entry 08/21/2017 
FR Recognition Number 4-232
Standard
ISO 20795-1 Second edition 2013-03-01 Dentistry - Base polymers - Part 1: Denture base polymers
Scope/Abstract
1.1 This part of ISO 20795 classifies denture base polymers and copolymers and specifies their requirements. It also specifies the test methods to be used in determining compliance with these requirements. It further specifies requirements with respect to packaging and marking the products and to the instructions to be supplied for use of these materials. Furthermore, it applies to denture base polymers for which the manufacturer claims that the material has improved impact resistance. It also specifies the respective requirement and the test method to be used.

1.2 Although this part of ISO 20795 does not require manufacturers to declare details of the composition, attention is drawn to the fact that some national or international authorities require such details to be provided.

1.3 This part of ISO 20795 is applicable to denture base polymers such as those listed below:
a) poly(acrylic acid esters);
b) poly(substituted acrylic acid esters);
c) poly(vinyl esters);
d) polystyrene;
e) rubber modified poly(methacrylic acid esters);
f) polycarbonates;
g) polysulfones;
h) poly(dimethacrylic acid esters);
i) polyacetals (polyoxymethylene);
j) copolymers or mixtures of the polymers listed in a) to i).
Extent of Recognition
Complete standard
Rationale for Recognition
This standard is relevant to medical devices and is recognized on its scientific and technical merit and/or because it supports existing regulatory policies.
Public Law, CFR Citation(s) and Procode(s)*
Regulation Number Device Name Device Class Product Code
§872.3760 Resin, Denture, Relining, Repairing, Rebasing Class 2 EBI
FDA Technical Contact
 Michael Adjodha
  FDA/OC/CDRH/OPEQ/OHTI/DHTIB/
  301-796-6276
  michael.adjodha@fda.hhs.gov
Standards Development Organization
ISO International Organization for Standardization https://www.iso.org/
FDA Specialty Task Group (STG)
Dental/ENT
*These are provided as examples and others may be applicable.
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