Found 6 matching results
(CN → US)
HS Code | Official Doc | Tariff Rate | Origin | Destination | Effective Date |
---|---|---|---|---|---|
3924104000 | Doc | 33.4% | CN | US | 2025-05-12 |
3924905650 | Doc | 40.9% | CN | US | 2025-05-12 |
3926902100 | Doc | 41.7% | CN | US | 2025-05-12 |
3926909910 | Doc | 42.8% | CN | US | 2025-05-12 |
6307909885 | Doc | 37.0% | CN | US | 2025-05-12 |
6307909885 | Doc | 37.0% | CN | US | 2025-05-12 |




Tooth Tray
A tooth tray is a custom-fitted or prefabricated oral appliance used in dentistry and orthodontics for a variety of purposes, primarily relating to tooth alignment, protection, and treatment.
Materials
Tooth trays are fabricated from a range of materials, selected based on the intended use and patient needs:
- Thermoplastic Materials: Commonly used for retainers, bleaching trays, and some types of aligners. Examples include ethylene vinyl acetate (EVA), polypropylene, and polyethylene terephthalate glycol (PETG). These materials become pliable when heated and moldable to the teeth.
- Acrylic: Durable and rigid, often used for Hawley retainers and some orthodontic appliances.
- Polyurethane: Known for its strength, flexibility, and clarity, used in aligners and some night guards.
- Silicone: Used for impression materials to create molds for custom trays, and also for flexible night guards.
- Hard Acrylic with Soft Liners: Combines the durability of acrylic with the comfort of a flexible liner, often used for night guards and some orthodontic appliances.
Purpose & Function
The primary functions of tooth trays depend on their specific type:
- Tooth Alignment: Clear aligners utilize a series of trays to gradually shift teeth into the desired position. Each tray is slightly different, incrementally moving the teeth.
- Tooth Retention: Retainers, typically worn after orthodontic treatment (braces or aligners), maintain teeth in their new positions, preventing relapse.
- Teeth Whitening (Bleaching): Custom or stock trays hold whitening gel in contact with the teeth, facilitating the bleaching process.
- Night Guards: Protect teeth from grinding (bruxism) and clenching during sleep, preventing wear, damage, and jaw pain.
- Fluoride Delivery: Trays can hold fluoride gel to strengthen teeth and prevent cavities.
- Space Maintainers: Used in children to hold space open after premature tooth loss, preventing crowding or misalignment.
- Sedation/Drug Delivery: In some cases, trays can be used to deliver medication or sedatives.
Usage Scenarios
- Orthodontic Treatment: Aligners are used for comprehensive orthodontic correction.
- Post-Orthodontic Care: Retainers are essential after braces or aligner treatment to prevent teeth from shifting.
- Cosmetic Dentistry: Whitening trays are used for teeth bleaching to improve appearance.
- Sleep Medicine/Dentistry: Night guards are used to manage bruxism and temporomandibular joint (TMJ) disorders.
- Pediatric Dentistry: Space maintainers are used to preserve space for permanent teeth.
- Preventive Dentistry: Fluoride trays help strengthen enamel and prevent cavities.
Common Types
- Clear Aligners (e.g., Invisalign): A series of custom-made, transparent trays that gradually move teeth.
- Hawley Retainers: Acrylic retainers with a wire that holds teeth in place. Known for durability.
- Essix Retainers: Clear, removable retainers made of a thermoplastic material.
- Bleaching Trays: Custom or stock trays used to hold whitening gel against teeth.
- Night Guards (Occlusal Splints): Protect teeth from grinding and clenching. Can be hard acrylic, soft silicone, or a combination.
- Space Maintainers: Various designs to hold space open in children's mouths.
- Fluoride Trays: Custom trays designed to hold fluoride gel.
Based on the provided information, the following HS codes may be relevant to “tooth tray”:
- 3924104000: This HS code covers Tableware, kitchenware, other household articles and hygienic or toilet articles, of plastics: Tableware and kitchenware: Other. This could apply if the tooth tray is made of plastic and is considered a household or hygienic article. The total tax rate is 33.4%, comprising a 3.4% base tariff, 0.0% additional tariff, and a 30% additional tariff effective after April 2, 2025.
- 3924905650: This HS code covers Tableware, kitchenware, other household articles and hygienic or toilet articles, of plastics: Other: Other. If the tooth tray is made of plastic and doesn’t fall specifically into the “Tableware and kitchenware” category, this code may be applicable. The total tax rate is 40.9%, consisting of a 3.4% base tariff, a 7.5% additional tariff, and a 30% additional tariff effective after April 2, 2025.
According to the provided reference material, the HS code options related to 'tooth tray' are limited, with only the following 2 found.
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