Dental impression, drilling template and method for providing a relative location for creating a drilling template

Patent metadata

Field	Value
Publication number	US-10188486-B2
Application number	US-201213983520-A
Country	US
Kind code	B2
Filing date	Feb 2, 2012
Priority date	Feb 3, 2011
Publication date	Jan 29, 2019
Grant date	Jan 29, 2019

Abstract

A dental impression that includes an underside and a connecting part. The underside has a negative form of at least one partial area of a jaw and at least one implant site located in the partial area of the jaw. The connecting part is a recess arranged on an upper surface of the dental impression opposite the underside in the area of the negative form of the implant site, and has a longitudinal axis defined along a depth direction of the recess. The recess has a geometry that is rotationally asymmetric about the longitudinal axis, and an external contour of the connecting part is asymmetrical in a plane perpendicular to the longitudinal axis of the connecting part. The connecting part has a lowered base as a depth stop, the lowered base being within the recess and below the upper surface of the dental impression.

First claim

The invention claimed is:

1. A dental positioning apparatus, comprising: a dental impression that includes:
an underside having a negative form of at least one partial area of a jaw and at least one implant site located in the partial area of the jaw, and
a connecting part comprising a recess formed in an upper surface of the dental impression, opposite the underside, in an area of the negative form of the implant site, wherein the connecting part has a longitudinal axis defined along a depth direction of the recess, and wherein a cross-sectional profile of the recess in a plane perpendicular to the longitudinal axis is rotationally asymmetric about the longitudinal axis,
wherein the dental impression is formed from an impression compound capable of a first physical state, where the impression compound is a malleable solid, and a second physical state, where the impression compound is a non-malleable solid; and

a positioning aid component that comprises a positioning aid component connecting part
wherein a cross-sectional profile of the positioning aid component connecting part, in the plane perpendicular to the longitudinal axis, corresponds to the cross-sectional profile of the recess, and
wherein a portion of the positioning aid component protrudes from the recess formed in the upper surface of the dental impression when inserted in the recess; and
a drill guide that includes a drill guide connecting part, wherein a cross-sectional profile of the drill guide connecting part, in the plane perpendicular to the longitudinal axis, corresponds to the cross-sectional profile of the recess,
wherein an entire outer periphery of the positioning aid component connecting part is dimensioned to fit within the recess formed in the upper surface of the dental impression, and

wherein an entire outer periphery of the drill guide connecting part is dimensioned to fit within the recess formed in the upper surface of the dental impression.

2. The dental positioning apparatus according to claim 1 , wherein the connecting part and the underside are unibodily formed.

3. The dental positioning apparatus according to claim 1 , wherein the dental impression includes a base of the recess such that the recess does not continue to the underside of the dental impression.

4. The dental positioning apparatus according to claim 1 , wherein the positioning aid component includes a radiopaque material.

5. The dental positioning apparatus according to claim 1 , wherein the recess has at least one side panel adjacent to the upper surface of the dental impression.

6. The dental positioning apparatus according to claim 1 , wherein the recess is defined by a plurality of sides of different lengths.

7. The dental positioning apparatus according to claim 1 , wherein the positioning aid component connecting part includes a plurality of side panels of different lengths.

8. The dental positioning apparatus according to claim 1 , wherein the positioning aid component includes a radiopaque material disposed outside of and above the recess in the longitudinal direction.

9. The dental positioning apparatus according to claim 1 , wherein the positioning aid component includes a support portion, and
wherein a surface of the support portion contacts the upper surface of the dental impression.

10. The dental positioning apparatus according to claim 1 , wherein the dental impression is radiolucent in the second physical state.

11. The dental positioning apparatus according to claim 1 , wherein the impression compound includes an insulating material.

12. The dental positioning apparatus according to claim 11 , wherein the insulating material is one of: polyethylene, polyurethane, or fiberglass.

13. The dental positioning apparatus according to claim 11 , wherein the insulating material is a polymer.

14. The dental positioning apparatus according to claim 1 , wherein the positioning aid component does not include a drill guide hole.

15. The dental positioning apparatus according to claim 1 , wherein the impression compound is not an acrylic resin.

Assignees

• Schneider Sascha
• Dentsply Sirona Inc

Inventors

• Schneider Sascha

Classifications

• A61C8/0001 Primary

  Impression means for implants, e.g. impression coping · CPC title

• A61C13/0004

  Computer-assisted sizing or machining of dental prostheses · CPC title

• A61C1/084 Primary

  of implanting tools · CPC title

• A61B2017/568

  produced with shape and dimensions specific for an individual patient · CPC title

• A61B17/176

  for the jaw · CPC title