Section 872.5550 - Teething ring(a)Identification. A teething ring is a divice intended for use by infants for medical purposes to soothe gums during the teething process.(b)(1)Classification. Class I if the teething ring does not contain a fluid, such as water. The device is exempt from the premarket notification procedures in subpart E of part 807 of this chapter.(2) Class II (special controls) if the teething ring contains a fluid, such as water. 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 .52 FR 30097, Aug. 12, 1987, as amended at 59 FR 63009, Dec. 7, 1994; 84 FR 71812 , Dec. 30, 2019