[Code of Federal Regulations] [Title 21, Volume 8] [Revised as of April 1, 2002] From the U.S. Government Printing Office via GPO Access [CITE: 21CFR872.3540] [Page 323] TITLE 21--FOOD AND DRUGS CHAPTER I--FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) PART 872--DENTAL DEVICES--Table of Contents Subpart D--Prosthetic Devices Sec. 872.3540 OTC denture cushion or pad. (a) Identification. An OTC denture cushion or pad is a prefabricated or noncustom made disposable device that is intended to improve the fit of a loose or uncomfortable denture, and may be available for purchase over-the-counter. (b) Classification. (1) Class I if the device is made of wax- impregnated cotton cloth that the patient applies to the base or inner surface of a denture before inserting the denture into the mouth. The device is intended to be discarded following 1 day's use. The class I device is exempt from the premarket notification procedures in subpart E of part 807 of this chapter subject to Sec. 872.9. (2) Class II if the OTC denture cushion or pad is made of a material other than wax-impregnated cotton cloth or if the intended use of the device differs from that described in paragraph (b)(1) of this section. The special controls for this device are FDA's: (i) ``Use of International Standard ISO 10993 `Biological Evaluation of Medical--Devices Part I: Evaluation and Testing,' '' and (ii) ``OTC Denture Reliners, Repair Kits, and Partially Fabricated Denture Kits.'' [52 FR 30097, Aug. 12, 1987, as amended at 65 FR 2315, 2000; 65 FR 17144, Mar. 31, 2000]