Customizable dental device

Patent metadata

Field	Value
Publication number	US-11241300-B2
Application number	US-202016839594-A
Country	US
Kind code	B2
Filing date	Apr 3, 2020
Priority date	Apr 3, 2019
Publication date	Feb 8, 2022
Grant date	Feb 8, 2022

Abstract

The present invention relates to a dental device adapted to be connected to a dental implant fixture, wherein the device at least comprises an scan body comprising polyether ether ketone (PEEK) adapted to be connected to the dental implant fixture and adapted to be captured by a scanning device, and a customizable gingiva body mounted to the scan body in a fixed position, wherein the gingiva body comprises a thermoplastic polymer adapted to be captured by a scanning device and at least partially comprising a polymer comprising a melting point of ≥35° C. and ≤80° C. In addition, the invention relates to a process for the production of a customized dental model and the use of a digital model obtained by the inventive process to produce customized crown models.

First claim

The invention claimed is:

1. A dental device adapted to be connected to a dental implant fixture, the device comprising:
a scan body comprising polyether ether ketone (PEEK) adapted to be connected to the dental implant fixture and adapted to be captured by a scanning device, and
a customizable gingiva body mounted to the scan body in a fixed position to keep the customizable gingiva body and the scan body held together in a defined orientation before and during connection to the dental implant, and adapted to be captured by a scanning device, wherein:
the gingiva body comprises polycaprolactone (PCL) in an amount of 100 weight %,
the PCL includes a melting point that is ≥40° C. and ≤65° C., and a glass transition temperature that is ≥−70° C. and is ≤−50° C.,
the PCL includes an elastic modulus according to DIN EN ISO 527-3:2018 of ≥250 MPa and ≤400 MPa, and
each of the customizable gingiva body and the scan body comprise at least one orientation marker individually adapted to be captured by a scanning device.

2. The dental device according to claim 1 , wherein the PCL includes a flexural strength according to DIN EN ISO 527-3:2018 of ≥35 MPa and ≤80 MPa.

3. The dental device according to claim 1 , wherein the customizable gingiva and scan body orientation markers are X-ray scanable.

4. The dental device according to claim 1 , wherein the customizable gingiva body comprises mirror symmetry and the ratio of the gingiva body front and back side dimensions to the gingiva body lateral dimensions is ≥1.1 and ≤2.0.

5. The dental device according to claim 1 , wherein the customizable gingiva body comprises a concave or convex symmetry.

6. A process for the production of a customized dental model comprising:
a) providing the dental device according to claim 1 ;
b) at least partially heating the customizable gingiva body of the dental device above the melting temperature;
c) connecting the device obtained in step b) to a dental implant fixture in the oral cavity of a patient;
d) at least partially adapting the customizable gingiva body at least partially to the gingiva line of the patient;
e) scanning the customized configuration of the dental device obtained in step d) within the oral cavity to obtain 3D scan data of the customized device;
f) building a customized digital model including a customized gingiva part based on the scan data obtained in step e).

7. The process according to claim 6 , wherein the building of the digital model is based on the data obtained in the step e) and additional scan data of the customized dental device outside the oral cavity.

8. The process according to claim 6 , wherein for obtaining the additional scan data of the dental device outside of the oral cavity the dental device is attached to a scan-element.

9. The process according to claim 6 , wherein the scanning in step e) is performed by an optical intra oral scanner.

10. The process according to claim 6 , further comprising manufacturing a customized crown model comprising a customized gingiva portion based on the digital model.

Assignees

• Straumann Holding Ag

Inventors

• Lorenzen Julian
• Van Ophuysen Andreas

Classifications

• A61C8/005 Primary

  Connecting devices for joining an upper structure with an implant member, e.g. spacers · CPC title

• A61C19/04

  Measuring instruments specially adapted for dentistry ({A61C5/44 takes precedence; testing vitality of teeth A61B5/0534;} radiation diagnosis specially adapted for dentistry A61B6/51) · CPC title

• A61C13/34 Primary

  Making or working of models, e.g. preliminary castings, trial dentures; Dowel pins [4] · CPC title

• A61C8/0078

  with platform switching, i.e. platform between implant and abutment · CPC title

• A61C9/0053 Primary

  Optical means or methods, e.g. scanning the teeth by a laser or light beam · CPC title