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| Number | Title | Issue Date |
| 7347830 | Assemblies and methods for measuring tooth apex location The invention provides an assembly for measuring the penetration depth of a dental instrument into a root canal of a tooth. The assembly has a base element configured to be clampingly braced onto a tooth to be treated; an electrically conductive guiding member affix... | 03/25/2008 |
| 7288075 | Methods and devices utilizing rheological materials Impression devices are provided for making an impression of a desired feature. The impression devices include: a flexible bladder having a cavity formed therein, the flexible bladder being capable of conforming to the details of the desired feature; a rheological ma... | 10/30/2007 |
| 7223249 | Method and apparatus for determining the depth of a gingival pocket A method and apparatus are provided for determining the depth of a gingival pocket using ultra-sound signals transmitted transgingivally. Transgingival (through the gum) transmission of the ultra-sonic signal permits a completely non-invasion determination of the de... | 05/29/2007 |
| 7147467 | Tooth mobility measuring apparatus A tooth mobility measuring apparatus of this invention includes an impact mechanism which injects or sucks a fluid to apply an impact to a tooth, a sensor which detects the displacement state of the tooth which is moved by the impact force from the impact mechanism,... | 12/12/2006 |
| 7090497 | Method of periodontal laser treatment A method of selectively treating microbiological pathogens which are implicated in the advancement of periodontitis is disclosed. Preferably, the microbiological pathogens are phorphyromonas gingivalis (Pg) and prevotella intermedia (Pi) which are known to colonize ... | 08/15/2006 |
| 6997883 | Diagnostic apparatus for determining the remineralization ability of tissue The invention relates to a diagnostic apparatus with which diseased hard tissue, in particular carious dental tissue, can be examined through a small working channel, to see whether it can be made healthy again by remineralization. This diagnosis apparatus tightly (... | 02/14/2006 |
| 6974449 | Friction compensation in a minimally invasive surgical apparatus Devices, systems, and methods for compensate for friction within powered automatic systems, particularly for telesurgery and other telepresence applications. Dynamic friction compensation may comprise applying a continuous load in the direction of movement of a join... | 12/13/2005 |
| 6520773 | Endodontic file An endodontic file having an electrically conductive stem with a bottom-cutting portion and a top head for electrically connecting to an instrument to measure the internal cavity of the tooth. A handle is mounted to the head. The middle stem portion of th... | 02/18/2003 |
| 6413220 | Surface acoustic wave periodontal probe and method of detecting periodontal disease An ultrasonic probe (10) for measuring the depth of detachment between a tooth (30) and the tooth's supporting tissue includes a probe head (12) having an ultrasonic transducer (35). An incident acoustic wave pulse (50) is transmitted through a coupling m... | 07/02/2002 |
| 6254389 | Hand-held microwave intra-oral dental system A hand-held microwave system for intra-oral dentistry utilizes microwave energy to cure polymer materials intra-orally so as to produce dental composites having improved physical characteristics, and also utilizes microwave energy to detect the presence o... | 07/03/2001 |
| 6120466 | System and method for quantitative measurements of energy damping capacity A method and system for measuring quantitatively the energy damping capacity of a specimen. In one embodiment of the present invention, the tip of the polymer sleeve of the handpiece of the system is placed directly against the specimen to be tested. The ... | 09/19/2000 |
| 6059569 | Apical position detection apparatus The present invention provides an apical position detection apparatus for accurately detecting the fact that a measuring electrode arrives at the apical position. The apparatus has a first current value measuring means for measuring a first frequency valu... | 05/09/2000 |
| 5993209 | Periodontal pocket measurement apparatus The periodontal pocket measurement apparatus of the present invention comprises a main handpiece unit provided with a cover member for covering the front end portion thereof, an operation member mounted at the front end of the cover member and being slida... | 11/30/1999 |
| 5951292 | Method of detecting periodontal disease by detecting the natural frequency of a tooth. A method of detecting periodontal disease involves attaching a vibration detector to the tooth, causing the tooth to vibrate by means of striking the tooth with a hammer, and then picking up signals corresponding to of the vibration of the tooth for proce... | 09/14/1999 |
| 5947726 | Dental probe and dental diagnosis device A dental probe that directly measures pH level and temperature of gum pockets and other diseased parts of the oral cavity is provided. The dental probe has a handle and a needle with a pH sensor and a temperature sensor in the needle tip. The handle permi... | 09/07/1999 |
| 5897509 | Probe for measuring periodontal pocket depth A probe for measuring a depth of a periodontal pocket includes an emitting device for emitting, from a position at a distance from the periodontal pocket, a light beam toward the periodontal pocket, a receiving device for receiving, at a position at anoth... | 04/27/1999 |
| 5803730 | Mobilometer Measuring apparatus and method for measuring the mobility of an object, such as a tooth, having a longitudinal axis, that is disposed in a securing medium. The apparatus includes an outer and an inner housing. The outer housing partially defines a cavity ... | 09/08/1998 |
| 5755571 | Differential measurement periodontal structures mapping system This invention relates to a periodontal structure mapping system employing a dental handpiece containing first and second acoustic sensors for locating the Cemento-Enamel Junction (CEJ) and measuring the differential depth between the CEJ and the bottom o... | 05/26/1998 |
| 5680874 | Apparatus for measuring tooth mobility An apparatus for measuring the teeth for looseness in a form of physical quantity of elasticity, viscosity and mass elements. The apparatus including a signal generator producing analog signals that have a desired frequency and waveform, a vibration drive... | 10/28/1997 |
| 5460522 | Slidable assemblies and probe elements A probe element for probe apparatus such as a dental probe comprises a curved tubular sheath having a proximal end for connection to main body of the probe apparatus and on open distal end. A probe member slides within the sheath and has a proximal end fo... | 10/24/1995 |
| 5383752 | Apparatus for making dental replacements The method described in this disclosure permits the production of dental replacements, such as inlays, onlays, and crowns, at high accuracy of fit and low cost in a single session of the patient's at the dentist's. For this purpose, a material that harden... | 01/24/1995 |
| 5331707 | Pressure alarm toothbrush assembly A toothbrush is arranged for reception within a housing, with the toothbrush arranged to be positioned between spring contacts within the housing, whereupon deflection of the toothbrush shaft relative to the contacts effects electrical communication upon ... | 07/26/1994 |
| 5327903 | Apparatus for diagnosing periodontitis An apparatus for diagnosing an inflammatory condition relating to periodontitis made up of a probe with sensors for measuring temperature within a periodontal pocket. The apparatus further comprises a graduated scale for measuring the depth of the periodo... | 07/12/1994 |
| 5318442 | Periodontal probe An automated periodontal probe uses a logic device to control the drive motor of a distendable probe rod. The movement of the probe rod is measurable and the force applied to the rod is quantifiable, therefore the device affords exacting repeatability of ... | 06/07/1994 |
| 5295833 | Dental root canal diagnostic and treating equipment A dental root canal diagnostic and treating equipment with which specific position/s, which serve/s as the reference positions, can be set arbitrarily and such positions can be displayed. With the equipment, therefore, operation can be proceeded with know... | 03/22/1994 |
| 5244387 | Measuring probe to detect pocket depth of a tooth holding apparatus A measuring probe to detect pocket depth of a tooth holding apparatus by inserting a feeler as far as the bottom of the gum pocket. A light beam is generated which can be moved relative to the feeler. A detector detects reflected light beams by being irra... | 09/14/1993 |
| 5211556 | Root canal meter A root canal meter is disclosed, wherein measured data are compensated linearly or substantially linearly according to distance between tip of an electrode and apical position and thus compensated data are displayed. According to the invention interrelati... | 05/18/1993 |
| 5197487 | Measuring probe A probe for measuring distances of clincal interest in a patient undergoing dental treatment has an end which is placed adjacent a first point and a tip which is extendable to a second point. A measurement apparatus in the housing, provides an output sign... | 03/30/1993 |
| 5144753 | Probe instrument A probe instrument for measuring the depth of a pocket in a variety of materials, including but not limited to human tissue, includes a handle, a probe movably mounted within a sheath that is movably mounted within the handle, a displacement sensor, and a... | 09/08/1992 |
| 5131844 | Contact digitizer, particularly for dental applications A dental surface tracer includes a probe with a tip that can be moved to trace a given dental surface, including a mounting device for mounting the tracer to a stable reference location and defining a base plane; a first plurality of links which are subst... | 07/21/1992 |
| 5112224 | Dental detection apparatus for position of root apex A dental detection apparatus for the position of a root apex comprises two oscillators for generating the currents having two different frequencies passing between a single electrode contacting to a patient's body and a reamer, a differential amplifier fo... | 05/12/1992 |
| 5096419 | Apparatus and method for detecting an apical position An apical position detection apparatus for detecting an apical position depending on the change in the impedance between a measuring electrode inserted in a root canal and an oral electrode connected to a soft oral tissue, the apparatus being characterize... | 03/17/1992 |
| 5080586 | Apical foramen position detector for use in dental treatment There is disclosed a device for detecting the position of an apical foramen of a tooth's root by measuring a change in the impedance between a measuring needle inserted into a tooth's root canal and an electrode abutting on oral mucosa. This device includ... | 01/14/1992 |
| 5049069 | Digital apical foramen locating apparatus with linear graphic display The digital apical foramen locating apparatus of the present invention utilizes the recognized fact that the conductance from the apical foramen to a patient's lip is not only equal to the conductance from the sulcus to the lip but is also constant from p... | 09/17/1991 |
| 5022856 | Dental probe assembly A dental probe assembly includes a tool having a handle portion at one end thereof and a portion detachably connected to the handle. A probe tip is mounted to the neck portion. The probe tip is a disposable light conducting and emitting member. Light is t... | 06/11/1991 |
| 4997369 | Apparatus for digitizing a three-dimensional surface Apparatus for digitizing the contour of a three-dimensional surface of an object includes a handle, a probe carried by the handle and movable along three independent axes to contact sample points on the three-dimensional surface, and a positional sensor f... | 03/05/1991 |
| 4995403 | Periodontal probe A periodontal probe includes sequentially disposed, normally connected sensor, shaft and tip portions, and a longitudinally extending fiber element in the tip and shaft portions. The fiber element is retractable into the tip portion to measure the depths ... | 02/26/1991 |
| 4960132 | Self-contained periodontal probe for remote recordations A periodontal probe which is structurally isolated from a recording device and which is touch-activated. The probe includes a tubular probe body and a semi-rigid fiber extending from a forward segment of the probe body for insertion into an anatomical poc... | 10/02/1990 |
| 4904184 | Periodontal probe instrument A periodontal probe instrument for measuring the depth of a periodontal pocket in the gingiva adjacent a tooth includes a probe handle member in which a displacement sensor and a probe element are mounted. The probe element includes an external end and is... | 02/27/1990 |
| 4883425 | Dental probe assembly A dental probe assembly includes a tool having a handle portion at one end thereof with a probe mounted at the other end. The probe is made of a light conducting member associated with means for transmitting light to the probe. The tool also includes mean... | 11/28/1989 |
