Gauged root canal condenser spreader
US4552531A · kind A · utility
Inventor
Key dates
| Filing date | Nov 16, 1984 |
| Grant date | Nov 12, 1985 |
| Priority date | — |
| Expiry date | Nov 16, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S40/913
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The invention is an improved dental instrument for root canal dental treatment. The improved instrument is a combined root canal condenser and spreader instrument which makes it possible for the dentist to do the treatment work with one instrument instead of constantly changing back and forth between two instruments. In addition, the combined instrument uses a common handle with removable and replaceable working ends of the instrument when different sizes of instruments are required for the tooth being treated or for the stage at which the tooth is being treated. The removable and replaceable working ends of the instrument are gauged marked so that the dentist can gauge the depth at which the dental work must be done and at which the following stages of the work are being done in order to assure a fully spread and condensed dental material in the tooth. The gauged root canal condenser spreader consists of a handle member, a removable and replaceable condenser instrument end or tip, a removable and replaceable spreader instrument end, and easily visable gauge markings on each of the removable and replaceable condenser and spreader instrument ends, respectively.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.