{"data":{"id":"us/21-cfr-872.3710","jurisdiction":"us","citation":"21 CFR 872.3710","heading":"Base metal alloy.","body":"(a) Identification. A base metal alloy is a device composed primarily of base metals, such as nickel, chromium, or cobalt, that is intended for use in fabrication of cast or porcelain-fused-to-metal crown and bridge restorations.\n(b) Classification. Class II (special controls). The special control for this device is FDA's “Class II Special Controls Guidance Document: Dental Base Metal Alloys.” 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. See § 872.1(e) for availability of guidance information.","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":"5cdbba6e4bc74afd2975ad9ffba20dca031bc69a04d42512ca362af9f8ff2fc0","source_id":"us-cfr","stale":true,"prev":"us/21-cfr-872.3690","next":"us/21-cfr-872.3730"},"notice":"GroundRules: Original legal text. Not legal advice."}