9021.21 - Artificial teeth and parts and accessories thereof:

This HTS category, 9021.21, specifically covers artificial teeth and any associated parts or accessories for them. This includes prosthetic teeth designed to replace missing natural teeth, whether they are individual units or part of a denture. The primary function of items classified here is to restore the appearance and/or chewing function of the mouth.

This classification distinguishes itself from its sibling category, 9021.29 ("Other"), by its explicit focus on artificial teeth. While 9021.29 would encompass other dental fittings not specifically considered artificial teeth (such as certain types of dental prostheses or components not directly forming the tooth itself), 9021.21 is reserved for the teeth themselves and their immediate attachments.

Within this category, further subdivisions exist to differentiate based on material. The subcategories, 9021.21.40.00 ("Of plastics") and 9021.21.80.00 ("Other"), allow for more granular classification. This distinction is important for reporting and statistical purposes, acknowledging that artificial teeth can be manufactured from a variety of materials, with plastics being a common choice.