Compression method tooth

Patent metadata

Field	Value
Publication number	US-10311753-B2
Application number	US-201615017873-A
Country	US
Kind code	B2
Filing date	Feb 8, 2016
Priority date	Apr 1, 2015
Publication date	Jun 4, 2019
Grant date	Jun 4, 2019

Abstract

The compression molded tooth used for practicing dental cutting treatment of the present invention comprises a composition containing a powder or powders of saccharide, polysaccharide, protein, and/or glycoprotein each having a particle size of 1 to 100 μm.

First claim

What is claimed is:

1. A compression molded tooth used for practicing dental cutting treatment consisting of a compression molded article of a composition consisting of a powder or powders of saccharide, polysaccharide, protein, and/or glycoprotein each having a particle size of 1 to 100 μm.

2. The compression molded tooth according to claim 1 , wherein the tooth has portions where the numbers of compression molding cycles are different.

3. The compression molded tooth according to claim 1 , wherein the tooth comprises a first portion constituting an enamel tooth portion and a second portion constituting a dentin tooth portion, wherein the number of compression molding cycles for the first portion is larger than the number of compression molding cycles for the second portion.

4. The compression molded tooth according to claim 1 , wherein the tooth has a third portion different from the first portion and the second portion therein.

5. The compression molded tooth according to claim 4 , wherein the third portion constitutes a dental caries portion, a dental pulp portion, and/or a cutting target portion.

6. A method for producing a compression molded tooth according to claim 1 comprising: molding a crown side using a concave mold; and molding a root side using a convex mold.

7. The method for producing a compression molded tooth according to claim 6 , wherein an enamel tooth portion closer to an occlusal surface is molded using a first convex mold, and then a dentin tooth portion is molded using a second convex mold.

8. The method for producing a compression molded tooth according to claim 7 , wherein molding pressure for the first convex mold is 20 to 100 MPa; molding pressure for the second convex mold is 5 to 85 MPa; and the molding pressure for the second convex mold is lower by 15 MPa or more as compared with the molding pressure for the first convex mold.

Assignees

• Shofu Inc

Inventors

• Kadobayashi Yusei
• Shigezawa Masako

Classifications

• A61K6/831

  comprising non-metallic elements or compounds thereof, e.g. carbon · CPC title

• A61K6/79

  Initiators · CPC title

• A61C13/09

  {Composite teeth, e.g. front and back section (A61C13/0835, A61C13/1023 take precedence)}; Multilayer teeth · CPC title

• G09B23/283 Primary

  for dentistry or oral hygiene (G09B23/286 takes precedence) · CPC title

• B29C2043/147

  by compressing after the laying of further material · CPC title