WO2006016389A9 - Dental scanning method using a lcd projector, a ccd video camera and mirrors - Google Patents
Dental scanning method using a lcd projector, a ccd video camera and mirrorsInfo
- Publication number
- WO2006016389A9 WO2006016389A9 PCT/IT2005/000485 IT2005000485W WO2006016389A9 WO 2006016389 A9 WO2006016389 A9 WO 2006016389A9 IT 2005000485 W IT2005000485 W IT 2005000485W WO 2006016389 A9 WO2006016389 A9 WO 2006016389A9
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- video camera
- prosthesis
- implant
- dental
- embossing
- Prior art date
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C13/00—Dental prostheses; Making same
- A61C13/0003—Making bridge-work, inlays, implants or the like
- A61C13/0004—Computer-assisted sizing or machining of dental prostheses
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C1/00—Dental machines for boring or cutting ; General features of dental machines or apparatus, e.g. hand-piece design
- A61C1/08—Machine parts specially adapted for dentistry
- A61C1/082—Positioning or guiding, e.g. of drills
- A61C1/084—Positioning or guiding, e.g. of drills of implanting tools
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C9/00—Impression cups, i.e. impression trays; Impression methods
- A61C9/004—Means or methods for taking digitized impressions
- A61C9/0046—Data acquisition means or methods
- A61C9/0053—Optical means or methods, e.g. scanning the teeth by a laser or light beam
Definitions
- Implantology is becoming an attractive alternative allowing to return to normal masticatory cycles patients having severely damaged denture if not totally absent. But while up to now it was necessary to distinguish between the phase of implant of the artificial root from the following phase of load, the principle of early loading as a strategy to improve the following rehabilitation is gaining momentum. This is however practically impossible to date, since it is necessary to accomplish a series of tasks, each of which requires a well defined actuation time, often of the order of a few days. This without taking into account the fact that dental embossing detection is one of the operations least accepted by the patient, even if unavoidable to build a correct prosthesis.
- the method is based on the fact that projecting a series of horizontal lines on a surface with a certain angle with respect to the perpendicular to said surface, while detecting the lines from a different point of view, the lines are seen as deformed when the surface is not oerfectlv flat and oeroendicular to a Diane containing both the central beam of the projected light and that of the receiving beam.
- this curvature allows, through calibration, to correlate the displacement from the horizontal and the local depth of the point observed. Projecting also, or in sequence, lines inclined by 45°, it is possible to correlate also the relative depth between horizontal lines. Projecting then in rapid sequence various lines of different thickness and position both horizontal and inclined, it is possible to obtain the shape with a high precision.
- Figure 1 shows projector and video camera fixed together and to the mirror that, introduced into the patient's mouth, allows the embossing detection.
Landscapes
- Health & Medical Sciences (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Dentistry (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP05778622A EP1898828A1 (en) | 2004-08-09 | 2005-08-08 | Dental scanning method using a lcd projector, a ccd video camera and mirrors |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT000012A ITCS20040012A1 (en) | 2004-08-09 | 2004-08-09 | New Technology for one-step Implant Prosthetics |
ITCS2004A00012 | 2004-08-09 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2006016389A1 WO2006016389A1 (en) | 2006-02-16 |
WO2006016389A9 true WO2006016389A9 (en) | 2006-04-06 |
Family
ID=35207490
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/IT2005/000485 WO2006016389A1 (en) | 2004-08-09 | 2005-08-08 | Dental scanning method using a lcd projector, a ccd video camera and mirrors |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1898828A1 (en) |
IT (1) | ITCS20040012A1 (en) |
WO (1) | WO2006016389A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2162700A1 (en) * | 2006-10-27 | 2010-03-17 | Danieli, Giovanna | Equipment for direct detection of dental die from the mouth of a patient |
US8646689B2 (en) * | 2007-12-28 | 2014-02-11 | Cognex Corporation | Deformable light pattern for machine vision system |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5372502A (en) * | 1988-09-02 | 1994-12-13 | Kaltenbach & Voight Gmbh & Co. | Optical probe and method for the three-dimensional surveying of teeth |
DE3933994A1 (en) * | 1989-10-11 | 1991-05-08 | Kaltenbach & Voigt | OPTICAL PROBE FOR ABSOLUTE 3-DIMENSIONAL MEASUREMENT OF INDIVIDUAL TEETH AND GROUPS OF TEETH IN THE ORAL CAVE |
-
2004
- 2004-08-09 IT IT000012A patent/ITCS20040012A1/en unknown
-
2005
- 2005-08-08 EP EP05778622A patent/EP1898828A1/en not_active Withdrawn
- 2005-08-08 WO PCT/IT2005/000485 patent/WO2006016389A1/en not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
WO2006016389A1 (en) | 2006-02-16 |
ITCS20040012A1 (en) | 2004-11-09 |
EP1898828A1 (en) | 2008-03-19 |
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Solaberrieta | DENTAL TECHNIQUE |
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