Orthodontic appliances having extra soft tooth gripping layer
The orthodontic appliance with a soft and hard thermoplastic layer system addresses the issues of visibility and attachment discomfort, enhancing grip and comfort for effective tooth repositioning.
WO2026024580A1 Publication Date: 2026-01-29SMYLIO INC
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Patent Information
- Application Number
- PCT/US2025/038347
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2024-07-24
- Filing Date
- 2025-07-18
- Publication Date
- 2026-01-29
AI Technical Summary
Technical Problem
Conventional orthodontic aligners are noticeable, require constant wear, and may slip off teeth, leading to treatment deviations and the need for attachments that cause discomfort and speech issues.
Method used
An orthodontic appliance with a first soft thermoplastic elastomer layer and a second hard thermoplastic layer that applies repositioning force without attachments, using a hydrophobic bonding mechanism to enhance grip and prevent saliva intrusion.
Benefits of technology
The appliance provides improved retention and comfort, allowing for longer break times and reduced attachment use, while maintaining effective tooth repositioning.
✦ Generated by Eureka AI based on patent content.
Abstract
A multi-layer orthodontic appliance has an extra soft or rubbery first layer for contacting the patient's teeth. The first layer is supported by a harder second sheet. The second harder sheet provides a repositioning force to move the patient's teeth according to a treatment plan. The extra soft first layer grips the teeth, and in preferred embodiments, is characterized by a contact angle sufficient to create a non-adhesive hydrophobic bond with the teeth. The appliance is operable to grip and move the patient's teeth according to a treatment plan without the need of attachments, or in the alternative, significantly reduces their prominences or the number of attachments required to treat a case, and without permitting water into the interface between the appliance and the teeth.
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