3306.90.00.00 - Other

HTS code 3306.90.00.00 encompasses "Other" preparations for oral or dental hygiene that do not fit into the more specific categories of dentifrices or dental floss. This broad classification is intended for any product designed for cleaning, preserving, or caring for the mouth and teeth, as long as it is presented for retail sale and not explicitly covered elsewhere within heading 3306.

This category serves as a residual classification, meaning it captures items that perform oral hygiene functions but are not dentifrices (like toothpaste or powders, classified under 3306.10.00.00) nor are they specifically dental floss (classified under 3306.20.00.00). Examples of goods that might fall under 3306.90.00.00 include mouthwashes, oral rinses, breath sprays, denture cleaners (other than pastes or powders covered by the main heading's introductory text), and specialized dental swabs or applicators if designed for oral hygiene purposes.

As a leaf node, 3306.90.00.00 has no further subcategories. Therefore, the primary task for customs classification professionals is to carefully assess the function and presentation of any oral hygiene product that does not meet the criteria for the more specific sibling categories to ensure it is correctly placed within this residual classification. The key determining factor remains its intended use in maintaining oral and dental cleanliness or health, and its individual retail packaging for consumer use.