Method of endodontic preparation of a root canal and a file set for use in the method
US6106296A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 18, 1997 |
| Grant date | Aug 22, 2000 |
| Priority date | — |
| Expiry date | Jul 18, 2017 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61C5/42
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method of cleaning and shaping a root canal in a tooth in preparation for filling the root canal with a filler material, such as gutta percha, as a part of an endodontic procedure includes the step of inserting into the root canal a tapered file having a spiraled scraping edge formed thereon, the scraping edge having a neutral rake angle, the file having a taper of about 0.04% such that, as a sequence of files of the same characteristics but having different tip diameters are employed, the root canal is shaped and cleaned from the coronal area towards the tooth apex in contrast to the traditional endodontic procedure wherein root canals have been shaped and cleaned in the step back method beginning with the root canal apex and progressing towards the coronal area.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.