Patent US6319006B1 successfully refreshed from Google Patents.
US6319006B1
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Method for producing a drill assistance device for a tooth implant
Assignee: Sirona Dental Systems GmbH
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Filing: 2000-10-31
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Granted: 2001-11-20
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Expires: 2020-10-31
Abstract
Abstract A method for producing a drill assistance device for a tooth implant includes the process steps of, initially the taking of an x-ray picture of the jaw and the compilation of a corresponding measured data record; then a three-dimensional, optical measurement of the visible surfaces of the jaw and of the teeth and the compilation of a corresponding measured data record. The measured data records from the x-ray picture and the measured data records from the three-dimensional, optical image are correlated with each other. Based on the information that is now available the type and position of the implant relative to the adjacent teeth is planned and a drill template is produced which is attached to the neighboring teeth, thus making the exact drilling of the implant pilot hole possible.
Inventors
- 👤 Franz Scherer
- 👤 Joachim Pfeiffer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 23:28
CPC Classifications
A; A61; A61C; A61C1/00; A61C1/08; A61C1/082; A61C1/084; A61B; A61B6/00; A61B6/50; A61B6/506
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
115 words
Method for producing a drill assistance device for a tooth implant in a person's jaw, comprising the following process steps: taking an x-ray picture of the jaw and compiling a corresponding measured data record, carrying out a three-dimensional optical measuring of the visible surfaces of the jaw and of the teeth and compiling a corresponding measured data record, correlating the measured data records from the x-ray picture and from the measured data records of the three-dimensional optical measuring, determinating the optimal bore hole for the implant, based on the x-ray picture, and determinating a pilot hole in a drill template relative to surfaces of the neighboring teeth based on the x-ray picture and optical measurement.
Claim 2
Dependent Claim
115 words
Method for producing a drill assistance device for a tooth implant in a person's jaw, comprising the following process steps: taking an x-ray picture of the jaw and compiling a corresponding measured data record, carrying out a three-dimensional optical measuring of the visible surfaces of the jaw and of the teeth and compiling a corresponding measured data record, correlating the measured data records from the x-ray picture and from the measured data records of the three-dimensional optical measuring, determinating the optimal bore hole for the implant, based on the x-ray picture, and determinating a pilot hole in a drill template relative to surfaces of the neighboring teeth based on the x-ray picture and optical measurement.
Claim 3
Dependent Claim
26 words
The method according to claim 1 , wherein the x-ray picture is one of a panoramic tomography image, a tomosynthetic image or a computer tomography image.
Claim 4
Dependent Claim
24 words
The method according to claim 1 , wherein the three-dimensional, measured, visible surfaces are the occlusal surfaces of neighboring teeth located on the jaw.
Claim 5
Dependent Claim
37 words
The method according to claim 1 , wherein the correlation of the measured data records from the x-ray picture and from the three-dimensional optical image is carried out by the provision of markers attached to the teeth.
Claim 6
Dependent Claim
15 words
The method according to claim 4 , wherein the marker comprises a ball shaped body.
Claim 7
Dependent Claim
36 words
The method according to claim 1 , wherein the measured data records of the three-dimensional measurement are converted to a pseudo-x-ray picture, assuming standard x-ray absorption values and the generation theory of the respective x-ray image.
Claim 8
Dependent Claim
20 words
The method according to claim 6 , wherein the x-ray picture and the pseudo-x-ray picture are superimposed from several directions.
Claim 9
Dependent Claim
26 words
The method according to claim 7 , wherein the x-ray picture comprises at least two individual panoramic images showing longitudinal and transverse sections of the jaw.
Claim 10
Dependent Claim
40 words
The method according to claim 1 , wherein the drill assistance device is ground out from a dimension-stable material, and said material represents the form of occlusal surfaces of neighboring teeth as a negative with respect to an implant position.
Claim 11
Dependent Claim
25 words
The method according to claim 9 , wherein the drill assistance device contains a bore hole position that serves as a guide for the drill.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2004-11-19 | 2005-05-21 | 2005-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2008-11-19 | 2009-05-21 | 2009-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2012-11-19 | 2013-05-21 | 2013-11-20 | $7700.00 | Window Closed / Lapsed |