DE10318579A1 - Caries sensor generates an acoustic or electromagnetic wave that is coupled to a tooth so that a reflected or transmitted wave can be detected and analyzed - Google Patents
Caries sensor generates an acoustic or electromagnetic wave that is coupled to a tooth so that a reflected or transmitted wave can be detected and analyzed Download PDFInfo
- Publication number
- DE10318579A1 DE10318579A1 DE2003118579 DE10318579A DE10318579A1 DE 10318579 A1 DE10318579 A1 DE 10318579A1 DE 2003118579 DE2003118579 DE 2003118579 DE 10318579 A DE10318579 A DE 10318579A DE 10318579 A1 DE10318579 A1 DE 10318579A1
- Authority
- DE
- Germany
- Prior art keywords
- caries
- sensor according
- measurement signal
- tooth
- sensor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves
- A61B5/0507—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves using microwaves or terahertz waves
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/0059—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence
- A61B5/0082—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence adapted for particular medical purposes
- A61B5/0088—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence adapted for particular medical purposes for oral or dental tissue
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
- A61B8/08—Detecting organic movements or changes, e.g. tumours, cysts, swellings
- A61B8/0875—Detecting organic movements or changes, e.g. tumours, cysts, swellings for diagnosis of bone
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C19/00—Dental auxiliary appliances
- A61C19/04—Measuring instruments specially adapted for dentistry
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biomedical Technology (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- General Health & Medical Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Biophysics (AREA)
- Engineering & Computer Science (AREA)
- Molecular Biology (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Pathology (AREA)
- Surgery (AREA)
- Physics & Mathematics (AREA)
- Dentistry (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Radiology & Medical Imaging (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Epidemiology (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Rheumatology (AREA)
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
Abstract
Description
Das technische Gebiet der Erfindung ist die medizinische Diagnostik.The The technical field of the invention is medical diagnostics.
Ein Basisproblem in der dental-medizinischen Diagnostik ist die Erkennung, ob sich hinter bzw. unter einer metallischen Füllung, einem metallischen Inlay bzw. einer metallischen Krone ein kariöser Bereich befindet.On The basic problem in dental medical diagnostics is detection, whether behind or under a metallic filling, a metallic inlay or a metallic crown is a carious area.
Mit dem Stand der Technik ist derzeit eine Erkennung eines kariösen Bereichs nicht möglich, weil die zur Diagnose verwendeten Röntgenstrahlen die Füllungen, Inlays bzw. Kronen nicht durchdringen können (Abbildung als sog. Metallschatten) und so auf Röntgenaufnahmen das dahinter bzw. darunter liegende Zahngewebe unsichtbar bleibt.With The detection of a carious area is currently the state of the art not possible, because the x-rays used for diagnosis are the fillings, Cannot penetrate inlays or crowns (illustration as a so-called metal shadow) and so on x-rays the tooth tissue behind or underneath remains invisible.
Bisher sind keine Diagnoseverfahren bekannt, die diesen Mangel vermeiden.So far no diagnostic methods are known that avoid this deficiency.
Das technische Problem liegt in der Erkennung kariöser Stellen, die unter metallischen Füllungen verborgen liegen.The The technical problem lies in the detection of carious spots under metallic fillings lie hidden.
Mittel zur Problemlösung:Problem solving tools:
Zum Patent angemeldet werden soll das Verfahren, diagnostisch nicht zugängliche kariöse Stellen dadurch zu erkennen, daß auf den Zahn bzw. auf die Einlage eine Welle oder ein Impuls aufgeprägt wird und die Reflektion dieser Welle oder dieses Impulses bzw. die an einer beliebigen anderen Stelle des Zahns wieder austretende Welle oder der Impuls gemessen wird.To the The procedure should be patent pending, but not diagnostically accessible carious Make it clear that on a wave or a pulse is impressed on the tooth or on the insert and the reflection of this wave or impulse or that on at any other point of the tooth again emerging shaft or the pulse is measured.
Kariöses Zahnmaterial hat eine von gesundem Zahnmaterial deutlich unterschiedliche mechanische Festigkeit, so daß eine auftreffende bzw. durchlaufende Welle oder ein Impuls eine von gesundem Material verschiedene, z.B. auch frequenzabhängige Dämpfung erfährt.Carious tooth material has a mechanical material that is significantly different from healthy tooth material Firmness so that a incoming or passing wave or an impulse one of healthy Different material, e.g. also experiences frequency-dependent damping.
Ein Ausführungsbeispiel kann ein Sensorstift sein, der ähnlich wie ein Kugelschreiber oder beliebig anders geformt ist. In der Spitze des Sensorstifts kann sich z.B. ein Piezokristall oder ein anderer Schwingungsgeber befinden, mit dessen Hilfe eine Vibration (d.h. Druckwelle oder einzelner Druckimpuls) erzeugt wird.On embodiment can be a sensor pen that is similar shaped like a ballpoint pen or any other way. In the The tip of the sensor pin can e.g. a piezo crystal or a other vibrators are located, with the help of a vibration (i.e. pressure wave or single pressure pulse) is generated.
Der Sensorstift wird auf den Zahn aufgesetzt, eine Welle ausgesendet und die reflektierte Welle mit einem ebenfalls im Sensorstift befindlichen Aufnehmer (zweiter Piezokristall, Mikrofon o.ä.) aufgenommen.The Sensor pin is placed on the tooth, a shaft is sent out and the reflected wave with one also located in the sensor pin Pickup (second piezo crystal, microphone or similar) recorded.
Die gesendete Welle kann eine Welle beliebiger Frequenz sein oder ein Einzelimpuls. Frequenz oder Impuls können eine bestimmte, beliebige Form haben (Sinus, Rechteck, Dreieck, Polynom, zusammengesetzte Formen oder andere).The transmitted wave can be a wave of any frequency or a Single pulse. Frequency or pulse can be any, any Have shape (sine, rectangle, triangle, polynomial, compound Shapes or other).
Die Aufprägung der Druckwelle kann auch durch Ultraschall, Infraschall, Schall, einen Laserstrahl, einen Elektronenstrahl, Mikrowellenstrahlung oder beliebige andere Energieträger geschehen, berührend oder berührungslos.The impressing the pressure wave can also be caused by ultrasound, infrasound, sound, a laser beam, an electron beam, microwave radiation or any other energy source happen touching or contactless.
Die empfangene Welle (Meßsignal) wird geeignet aufbereitet und untersucht, so daß ein Rückschluß auf die Festigkeit des hinter bzw. unter einer Einlage befindlichen Zahnmaterials möglich ist, z.B. kann eine Fast-Fourier-Transformation durchgeführt und ein selektives Dämpfungs- bzw. Resonanzverhalten extrahiert werden.The received wave (measurement signal) is suitably processed and examined so that a conclusion about the strength of the rear or tooth material located under an insert is possible, e.g. can perform a Fast Fourier transform and a selective damping or resonance behavior are extracted.
Es kann bei Verwendung eines Einzelimpulses auch die Form des Antwortimpulses ausgewertet werden.It can also use the shape of the response pulse when using a single pulse be evaluated.
Beliebige andere Auswertungsarten sind möglich.any other types of evaluation are possible.
Das Ergebnis kann in leicht verständlicher Form auf einem Display ausgegeben werden.The Result can be in an easy to understand form output on a display.
Vorteile der Erfindung sind:
- 1. Bei der Durchführung diagnostischer Maßnahmen hat der Zahnarzt derzeit keinen Zugang zu Zahnbereichen, die hinter bzw. unter metallischen Einlagen liegen. Gerade diese Zahnbereiche sind jedoch die für weitere Erkrankung (Karies) gefährdetsten Stellen. Die Erfindung ermöglicht die Erkennung und dadurch gezielte Behandlung solcher kariöser Stellen. Dadurch wird eine Früherkennung und die Durchführung von präventiven Maßnahmen möglich. Der Kariesschaden zeigt sich nicht erst dann, wenn die Einlage herausfällt und ein großer Teil der darunterliegenden Zahnsubstanz bereits angegriffen oder zerstört ist.
- 2. Bei auftretenden Zahnschmerzen und nicht sicherer Karies-Diagnose muß die Einlage nicht wie bisher „auf Verdacht" ausgebohrt werden, ein medizinisch und finanziell für den Patienten unangenehmer und gegebenenfalls auch sinnloser Vorgang. Die Erfindung vermeidet den Zwang zur verdachtsweisen Entfernung metallischer Einlagen aus diagnostischer Unsicherheit heraus.
- 1. When carrying out diagnostic measures, the dentist currently has no access to tooth areas that are behind or below metallic inserts. However, it is precisely these tooth areas that are the areas most at risk for further disease (caries). The invention enables the detection and thereby targeted treatment of such carious sites. This enables early detection and the implementation of preventive measures. The caries damage does not show up only when the insert falls out and a large part of the underlying tooth substance has already been attacked or destroyed.
- 2. If toothache occurs and the caries diagnosis is not certain, the insert does not have to be drilled out "on suspicion" as before, a process which is medically and financially unpleasant for the patient and possibly also senseless Uncertainty out.
Claims (27)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2003118579 DE10318579A1 (en) | 2003-04-24 | 2003-04-24 | Caries sensor generates an acoustic or electromagnetic wave that is coupled to a tooth so that a reflected or transmitted wave can be detected and analyzed |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2003118579 DE10318579A1 (en) | 2003-04-24 | 2003-04-24 | Caries sensor generates an acoustic or electromagnetic wave that is coupled to a tooth so that a reflected or transmitted wave can be detected and analyzed |
Publications (1)
Publication Number | Publication Date |
---|---|
DE10318579A1 true DE10318579A1 (en) | 2004-11-25 |
Family
ID=33393862
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE2003118579 Withdrawn DE10318579A1 (en) | 2003-04-24 | 2003-04-24 | Caries sensor generates an acoustic or electromagnetic wave that is coupled to a tooth so that a reflected or transmitted wave can be detected and analyzed |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE10318579A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006025775A1 (en) * | 2006-05-31 | 2007-12-06 | Rheinisch-Westfälisch-Technische Hochschule Aachen | Method for data acquisition in the mouth of a patient, corresponding device, installation with a dentist's chair and such a device, and use of this device |
WO2016128242A1 (en) * | 2015-02-12 | 2016-08-18 | Mühlbauer Technology Gmbh | Device and detector for dental diagnostics |
US10799210B1 (en) | 2017-09-01 | 2020-10-13 | S-Ray Incorporated | Dental imaging apparatus and method |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3215498A1 (en) * | 1982-04-26 | 1983-10-27 | Siemens AG, 1000 Berlin und 8000 München | PERCUSSION INSTRUMENT |
DE4200741A1 (en) * | 1992-01-14 | 1993-07-15 | Kaltenbach & Voigt | DEVICE FOR DETECTING CARIES ON TEETH |
DE4304170A1 (en) * | 1993-02-12 | 1994-08-18 | Isad Ingenieurbuero Gmbh Fuer | Method and device for detecting surface structures |
WO1997042909A1 (en) * | 1996-05-15 | 1997-11-20 | The University Court Of The University Of Dundee | Methods and apparatus for the detection of dental caries |
WO1998023224A1 (en) * | 1996-11-26 | 1998-06-04 | Novadent Ltd. | Device and method for the ultrasonic detection of smooth surface lesions on tooth crown surfaces |
DE19825021A1 (en) * | 1998-06-04 | 1999-12-09 | Kaltenbach & Voigt | Method and device for the detection of caries, plaque, calculus or bacterial infection on teeth |
DE10212520A1 (en) * | 2002-03-21 | 2003-10-16 | Braun Gmbh | Appliance for locating decaying teeth employs oscillating feeler tip of soft material |
-
2003
- 2003-04-24 DE DE2003118579 patent/DE10318579A1/en not_active Withdrawn
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3215498A1 (en) * | 1982-04-26 | 1983-10-27 | Siemens AG, 1000 Berlin und 8000 München | PERCUSSION INSTRUMENT |
DE4200741A1 (en) * | 1992-01-14 | 1993-07-15 | Kaltenbach & Voigt | DEVICE FOR DETECTING CARIES ON TEETH |
DE4304170A1 (en) * | 1993-02-12 | 1994-08-18 | Isad Ingenieurbuero Gmbh Fuer | Method and device for detecting surface structures |
WO1997042909A1 (en) * | 1996-05-15 | 1997-11-20 | The University Court Of The University Of Dundee | Methods and apparatus for the detection of dental caries |
WO1998023224A1 (en) * | 1996-11-26 | 1998-06-04 | Novadent Ltd. | Device and method for the ultrasonic detection of smooth surface lesions on tooth crown surfaces |
DE19825021A1 (en) * | 1998-06-04 | 1999-12-09 | Kaltenbach & Voigt | Method and device for the detection of caries, plaque, calculus or bacterial infection on teeth |
DE10212520A1 (en) * | 2002-03-21 | 2003-10-16 | Braun Gmbh | Appliance for locating decaying teeth employs oscillating feeler tip of soft material |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006025775A1 (en) * | 2006-05-31 | 2007-12-06 | Rheinisch-Westfälisch-Technische Hochschule Aachen | Method for data acquisition in the mouth of a patient, corresponding device, installation with a dentist's chair and such a device, and use of this device |
WO2016128242A1 (en) * | 2015-02-12 | 2016-08-18 | Mühlbauer Technology Gmbh | Device and detector for dental diagnostics |
US10799210B1 (en) | 2017-09-01 | 2020-10-13 | S-Ray Incorporated | Dental imaging apparatus and method |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
Marotti et al. | Recent advances of ultrasound imaging in dentistry–a review of the literature | |
DE3607949C2 (en) | ||
US8460216B2 (en) | Systems and methods of analyzing vibrations imparted to tissues and teeth | |
Ghorayeb et al. | Ultrasonography in dentistry | |
US6589054B2 (en) | Inspection of teeth using stress wave time non-destructive methods | |
DE69309920T2 (en) | EXAMINATION OF THE HEARING | |
US8641415B2 (en) | Method and apparatus for tooth crack detection by means of acoustic emission | |
TWI389675B (en) | Non-contact apparatus and method for stability assessment of dental implant | |
JPH03501930A (en) | Ultrasonic methods and devices for examining dental tissues | |
DE102010053688A1 (en) | Intelligent toothbrush for use in e.g. dental practice, has sensors arranged in handle piece for determining parameters e.g. position of head, orientation of head, force exerted by head, speed of movements and force for holding brush | |
ES2846738T3 (en) | Transducer comprising a device for emitting torsional ultrasonic waves | |
EP1595495A3 (en) | Dental device for examining optical characteristics of dental tissue | |
DE10318579A1 (en) | Caries sensor generates an acoustic or electromagnetic wave that is coupled to a tooth so that a reflected or transmitted wave can be detected and analyzed | |
Gomez et al. | Effects of piezoelectric units on pacemaker function: an in vitro study | |
EP1222942A3 (en) | System and method for automating capture verification assessment and pacing threshold assessment using a programmer | |
DE112007003613B4 (en) | Simplified fronto-sagittal device and two-dimensional echography for temporomandibular joints (ATM) only | |
WO1986003392A1 (en) | Device for determining the mobility of body limbs | |
JPH0250742B2 (en) | ||
RU184396U9 (en) | ULTRASONIC DEVICE FOR DIAGNOSTIC OF PHYSICAL DENSITY ANOMALIES | |
DE3620404C2 (en) | ||
DE10164044B4 (en) | Method and device for detecting the surface roughness of dental hard tissue | |
JP2004008432A (en) | Ultrasonic sensor for tooth diagnosis, and ultrasonic tooth diagnostic apparatus | |
Kim et al. | Development of a dental implant mobility measurement system using an inductive sensor | |
Lindgren | Ultrasonics in medicine | |
RU2141788C1 (en) | Method for recording physiological parameters of dentomaxillary system |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
OP8 | Request for examination as to paragraph 44 patent law | ||
8122 | Nonbinding interest in granting licenses declared | ||
8139 | Disposal/non-payment of the annual fee |