{"data":{"id":"us/21-cfr-872.1500","jurisdiction":"us","citation":"21 CFR 872.1500","heading":"Gingival fluid measurer.","body":"(a) Identification. A gingival fluid measurer is a gauge device intended to measure the amount of fluid in the gingival sulcus (depression between the tooth and gums) to determine if there is a gingivitis condition.\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 B—Diagnostic 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":"031a46656f91fe0a511f16933a79ad91634e7ba82847be9d3e104e89aa2554d4","source_id":"us-cfr","stale":true,"prev":"us/21-cfr-872.9","next":"us/21-cfr-872.1720"},"notice":"GroundRules: Original legal text. Not legal advice."}