{"data":{"id":"us/21-cfr-872.3490","jurisdiction":"us","citation":"21 CFR 872.3490","heading":"Carboxymethylcellulose sodium and/or polyvinylmethylether maleic acid calcium-sodium double salt denture adhesive.","body":"(a) Identification. A carboxymethylcellulose sodium and/or polyvinylmethylether maleic acid calcium-sodium double salt denture adhesive is a device composed of carboxymethylcellulose sodium and/or polyvinylmethylether maleic acid calcium-sodium double salt intended to be applied to the base of a denture before the denture is inserted in a patient's mouth to improve denture retention and comfort.\n(b) Classification. Class I (general controls). The device is exempt from the premarket notification procedures in subpart E of part 807 of this chapter subject to the limitations in § 872.9.","path":["Title 21—Food and Drugs","CHAPTER I—FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES","SUBCHAPTER H—MEDICAL DEVICES","PART 872—DENTAL DEVICES","Subpart D—Prosthetic Devices"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-21.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:24:47Z","sha256":"0256a0abba6f21bc5b1761ea9ddd5dc8f43095702f0c6113d3787e5e6437d83c","source_id":"us-cfr","stale":true,"prev":"us/21-cfr-872.3480","next":"us/21-cfr-872.3500"},"notice":"GroundRules: Original legal text. Not legal advice."}