Orthodontic Retainer Appliance from Canada
Clear thermoplastic orthodontic retainers maintain teeth positions post-treatment using vacuum-formed sheets over dental models. Classified under HTS 9021.29.80.00 as dental fittings preventing orthodontic relapse (bodily deformity correction per Chapter Note). Custom appliances for each patient's arch form.
Duty Rate — Canada → United States
10%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Document digital scans or stone models used for thermoforming to prove custom manufacture
• Specify orthodontic-grade materials meeting ISO 20795-2 for dental polymer biocompatibility
• Include retention protocols showing intended orthopedic deformity prevention function