Process and apparatus for the preparation of dental models
US4508506A · kind A · utility
Inventor
Key dates
| Filing date | Oct 31, 1983 |
| Grant date | Apr 2, 1985 |
| Priority date | — |
| Expiry date | Oct 31, 2003 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61C9/002
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An apparatus and a method for use in dental reconstruction work in the production of cast dental models and dental dies includes a U-shaped base member having a negative cavity in its top planar surface and a complementary U-shaped member in the form of horizontally disposed plate having a series of cast dowel-like members in the form of a dental arch depending from one surface of said plate and adapted for slidable reception in the negative cavity of said U-shaped base member. The other surface of said horizontally disposed plate of said complementary U-shaped member contains a series of anchoring means which may be embedded in the unset dental stone of a positive dental model. The use of the complementary U-shaped member with its anchoring means anchored in the set dental stone of the positive dental model allows for a die to be sawed out and separated from the remainder of the model while the rest of the positive model can be permanently and positively placed in the negative cavity of said base so as to allow the die to be removed and replaced into proper position with the adjacent teeth of the model for proper use on an articulator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.