Stents for placement of orthodontic attachments, and methods of producing and using such stents
US9757211B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Aug 16, 2016 |
| Grant date | Sep 12, 2017 |
| Priority date | — |
| Expiry date | Aug 16, 2036 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61C7/002
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An orthodontic direct bonding stent facilitates ideal positioning of physical attachments on a patient's teeth. Novel designs of direct bonding stents include uniquely configured windows for guiding placement of the attachments. Windows of reduced depth leave a majority of each attachment exposed beyond the stent for easy grip and manipulation, and use of a reduced height wall opposite the window-equipped wall eases removal of the stent without disruption of the adhered attachments. Use of elastomeric material at the window boundaries provides an improved seal with the tool for less adhesive splay, and inter-arch stents enable maxillary and mandibular placement with a single appliance. Lingual windows enable lingual placement of attachments for reduced visibility, and reduced wall thickness between adjacent windows provides improved mesial access to attachments. Enlarged bypass openings accommodate previously placed attachments, and bridged voids provide improved access and visibility for adhesive cleanup and accurate placement.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.