Method for producing tooth replacements and auxiliary dental parts

a technology for dental parts and auxiliary parts, which is applied in the field of forming dental parts and/or tooth replacement parts, can solve the problems of considerable waste that has to be reprocessed at great effort and expense, and the production of tooth replacement elements is complex, so as to achieve strong dental parts and reduce was

Inactive Publication Date: 2005-03-17
DOLABDJIAN HAIG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0005] The objective of the invention is to provide another, more advantageous way of producing such shaped bodies (and auxiliary dental parts required in implantology) that provides flexibility in manufacturing dental parts of different shapes, but which reduces the amount of waste and results in a strong dental part.

Problems solved by technology

In the prior art, such tooth replacement elements are produced in complex processes.
This method inevitably leads to considerable waste that has to be reprocessed at great effort and expense.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0008] The invention relates to a method that has become known in another field as “rapid prototyping” for producing complex tools or components as disclosed in U.S. Pat. No. 4,863,538 included herein by reference. According to said method, shaped bodies made of a sintering powder are built up in layers by exposing each layer successively to the energy of a laser beam that leads to local sintering, whereby the laser beam is guided over the respective powder layer by means of a computer-controlled system using data that represent the configuration of the shaped piece in this layer. As a result of supplying such energy, the powder elements affected in each case are superficially melted and form a fixed bond with each other and the underneath layer. Due to the precise focusing of the laser beam, the energy supply can be configured exactly—at relatively high density—and controlled in accordance with the stored spatial data of the shaped body required.

[0009] Conventionally, in a sinteri...

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Abstract

In a method for forming a dental part, a laser beam is guided over a powder layer of biocompatible material. The laser is guided by a computer controlled laser scanning system based on data representing the shape of the cross-section through the shaped body. The powder is substantially melted by the laser beam to form a layer in the shaped body, to build the shaped body entirely from layers of laser-melted material.

Description

[0001] The present application is a divisional of prior application Ser. No. 10 / 146,610 filed 14 May 2002, which is a continuation-in-part of application Ser. No. 10 / 081,039 filed 19 Feb. 2002.FIELD OF THE INVENTION [0002] This invention relates to a method of forming a dental part and / or a tooth replacement part. BACKGROUND OF THE INVENTION [0003] Tooth replacements in the form of crowns, bridges, inlays and the like frequently comprise complex molded bodies which must usually take account in each specific case of the spatial configuration of intact tooth parts (tooth stumps), entire teeth or parts of the jaw that have been lost, on the one hand, and the spatial situation in relation to adjacent and / or antagonistic teeth, on the other hand. In the prior art, such tooth replacement elements are produced in complex processes. The most widespread method is to produce the shaped bodies required—usually made of precious-metal or base-metal alloys, as well as pure metals—in a multi-step ...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): A61C13/00A61C13/20B22F3/105
CPCA61C13/0003B22F3/1055A61C13/20A61C13/0018B33Y10/00B33Y80/00A61K6/84Y02P10/25B22F10/28A61C5/77A61C5/73A61C13/0004A61C13/09B28B1/001
Inventor DOLABDJIAN, HAIGSTRIETZEL, ROLAND
Owner DOLABDJIAN HAIG
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