Abstract: The discovery of a new coefficient named “Radicular Spectral Attenuation Coefficient-RSAC”, applicable in electronic foramen locators is described. The novelty is the use of the spectral attenuation of a multifrequency electrical current signal, applied through the endodontic file into the tooth canal (TC), to determine the root length and the foramen position. FIG. (2): (2.1), (2.4), (2.8) and (2.2), (2.5), (2.9) are the amplitude and frequency axes, respectively; (2.3) is the electrical current frequency spectrum applied into the TC; (2.6) shows the spectrum exponential decay (2.7) of the signal measured over the TC. In (2.10) the axes (2.4) and (2.5) were logaritmized to linearize the exponential decay. The RSAC is the average inclination of the line (2.11), which is proportional to the distance between the tip of the endodontic file and the apical foramen. The RSAC changes as the tip of the file gets near the foramen.

Abstract: An oral function and dysfunction quantification device that automatically records the amount of time required for a laboratory animal to gnaw through multiple obstructions in a tube comprising a confinement tube and spring-loaded polymer dowels that actuate timers to precisely record the time required for a rodent to complete a discrete gnawing task. The investigation of human orofacial pain requires an animal test that objectively measures impairment secondary to pain during an oral function (gnawing) that is analogous to behavior that elicits pain in human patients (chewing). The device can also evaluate behavioral change secondary to complex disorders such as anxiety and depression and facilitate evaluation of molecular mechanisms and pharmacologic therapies relevant to chronic orofacial pain and behavioral disorders.

Abstract: An apparatus for measuring a dental occlusion includes: a position sensor (30) for detecting a position and posture of a lower jaw (12) relative to an upper jaw (11) and; an arithmetic circuit (31) for computing a posture relative to a translation distance in a state of occlusal contact. The computation is derived from the position and posture of the lower jaw (12) relative to the upper jaw (11) detected by the position sensor (30). The apparatus also includes a display monitor (32) for displaying the posture relative to the translation distance computed by the arithmetic circuit (31).

Abstract: Methods to size a gastric pouch. In at least one embodiment for measuring the size of a gastric pouch of the present disclosure, the method comprises the steps of introducing a catheter into an esophagus, the catheter comprising an outer elongate tube, an inner elongate tube disposed within the outer elongate tube, a proximal balloon attached to the outer elongate tube, a distal balloon having a first end attached to the outer elongate tube and a second end attached to the inner elongate tube, at least two detection electrodes positioned on the outer elongate tube between at least two excitation electrodes, and a pressure transducer positioned on the outer elongate tube, locating the gastroesophageal junction using the proximal balloon, adjusting the distal balloon axially to a desired balloon length, injecting a fluid into the distal balloon to extend the distal balloon circumferentially, and determining a size variable of the gastric pouch.

Abstract: An apparatus for evaluating the tongue strength of a subject during a sucking event includes an insert positioned within a nipple element to provide an output in response to deformation of the nipple element during a sucking event. The output is at least one of resistive force exerted against the subject's tongue and movement measurement of deformation force exerted on the nipple element during the sucking event. The apparatus is configurable to evaluate nutritive sucking (NS) or non-nutritive sucking (NNS) capabilities of the subject. The insert may be a sensing device, a compliance element, an intermediate device or a combination of these. A coupling device is configured to position the insert relative to the nipple element and/or to receive output from the insert. A method includes evaluating tongue strength of a subject during NS or NNS and using inserts providing increasing levels of resistive force to exercise the subject's tongue.

Abstract: A device for measuring orofacial stiffness in a subject can include: two lip saddle attachment components configured for attachment to the lip saddles of a patients mouth; two elongate members, each being coupled with one of the lip saddle attachment components; a pivot member that couples the two elongate members at a pivot point opposite from the two lip saddle attachment components; an electronic sensor configured to sense the stiffness of the lips by sensing movement of the elongate members with respect to the pivot point, where the electronic sensor is operably coupled to each of the elongate members; and a pressure component configured move with respect to the pivot point so as to provide pressure to and/or receive pressure from the lip saddle attachment components.

Abstract: A head set is provided. The head set is beneficial for assisting an individual who is significantly impaired in the use of his or her upper extremities. The system enables this individual to move a cursor on a display of a computer or other processing device using lingual musculature. The head set includes a head piece. The head piece supports an articulating arm. The articulating arm supports a mouthpiece at a distal end. The mouthpiece has a plurality of cells embedded therein. The cells are configured to receive pressure applied by the tongue of the user. Movement of the tongue over and against the cells causes the cursor to be moved on the display. A method for moving a cursor on a display using a mouthpiece controlled through lingual movement is also provided. In addition, a method of typing characters on a virtual keyboard using lingual musculature is offered.

Abstract: A method for creating a color scale which can be used as a more objective determination criteria in order to analyze the color change characteristics of a gum with the progression of mastication of individuals with healthy teeth and jaw and to use for evaluation of masticatory performance by a color-changeable chewing gum is provided. A method for creating a color scale in which the number of times of mastication by individuals with healthy teeth and jaw and the color difference of the color developed by the gum after mastication are determined by having a plurality of individuals with healthy teeth and jaw masticate a color-changeable chewing gum to determine a regression equation of the color developed by the gum after mastication and the color difference of gums before and after mastication and further determining a regression equation of the number of times of mastication and the color difference of gums before and after mastication.

Abstract: This disclosure relates to evaluating and objectively determining the relative normalcy of a human patient's lips, whether before or after a lip treatment, or independent from any lip treatment. The normalcy of a patient's lips is evaluated by examining a number of indicia and comparing the results to corresponding lip scales or reference descriptions. The normalcy may be evaluated before and after a lip treatment to determine the safety of the lip treatment.

Abstract: The proposed invention is a method and system for the segmentation of dual-axis accelerometry signals for the purposed of identifying problematic swallowing events. The method and system employ a sensor, a data collection means including an algorithm for the analysis of the data. The proposed invention considers the stochastic properties of swallowing signals in both directions, A-P and S-I to extract events associated with swallowing. A segmentation algorithm may be applied to the signals to establish the time duration of swallows and swallows may be classified with respect to gender, body mass index, age or types of swallow.

Abstract: An endoscopic apparatus includes a light-generating mechanism for generating at least one modulated measuring beam, a light-transmitting mechanism for conducting the measuring beam onto an area to be observed, where the light-transmitting mechanism includes an illuminating lens, in addition to a light-imaging mechanism for imaging a signal beam from the area to be observed at least onto a phase-sensitive image sensor, which includes a number of pixels, where the light-imaging mechanism includes an imaging lens. At least one additional image sensor is provided and the light-imaging mechanism includes a beam-splitter and/or an optical switch, where at least one adaptive lens is provided for adapting the fields of vision of the image sensors. As a result, an apparatus is created for endoscopic 3D data collection that is suitable for various types of image sensors.

Abstract: Computer-implemented system (1) for the analysis of the swallowing process in humans, which comprises an exposure unit (2) of the individual's head and neck area to external stimuli (3); a data capture unit (4) of data from the response to external stimuli; a data digitization unit (5); a digitized data processing unit (6); a memory unit (7); a processed data display unit (8), with the digitization unit (5), the memory unit (7) and the data display unit (8) being controlled by a computer program, wherein the external stimuli (3) consist of electromagnetic radiation; and where the data from the response to the external stimuli (3) consist of a continuous data sequence, which can be temporally and/or spatially analyzed and parametrized. The invention also relates to a computer-implemented procedure for the analysis and quantification of the swallowing process in humans.

Abstract: The present subject matter is suited for evaluating biomechanics and electrophysiology of an infant's orofacial system during sucking. The present subject matter includes at least one orofacial sensor and a processor. In various examples, the present subject matter additionally includes one or a combination of: a pacifier having a baglet, a receiver assembly, a stimulation device, a memory, a display, and data acquisition and analysis software. Advantageously, the present subject may non-invasively sample and analyze suck and may stimulate nerve endings in the face of an infant.

Abstract: The present invention relates to methods of using a therapeutic system. In particular, the present invention relates to procedures and methods of using a system having hardware, software, and appliance components for assessing and entraining a non-nutritive suck (NNS) pattern in a patient. The methods include configuring the hardware and software systems to receive data from an orofacial stimulation appliance and to generate a precise therapeutic pulse profile that is actuated as a tactile stimulus. The methods also include collecting data using the orofacial stimulation appliance and delivering the tactile stimulus via the orofacial stimulation appliance to entrain an organized NNS pattern.

Abstract: The present invention relates to a system and method for using the system. In particular, the present invention relates to an application, executable by a processing device to assess the organization of a non-nutritive suck (NNS) pattern of a patient and to entrain an organized NNS pattern in the patient. The software system receives data from an orofacial stimulation appliance to assess the patient's natural NNS pattern and generates a precise therapeutic pulse profile that is actuated as a tactile stimulus via the orofacial stimulation appliance to entrain an organized NNS pattern.

Abstract: The present disclosure relates to a wireless, bite activated switch for electrosurgery related electrosurgical systems, and methods of use thereof. During an electrosurgical procedure, a biocompatible switching device is gently held in the surgeon's mouth, typically between the teeth. The surgeon may activate an electrosurgical device by biting down on the switch. In embodiments, the wireless, bite activated switch includes a passive RFID tag that is powered by a radiofrequency signal transmitted by an interrogator included within an electrosurgical system unit. The wireless, bite activated may include a unique identifier which enables the electrosurgical system unit to respond only to a designated wireless device.

Abstract: The present disclosure relates to a method for performing electrosurgery. The disclosed method includes providing a wireless, bite-activated switch configured for use within a surgeon's mouth. The disclosed switch includes an activator, a transponder, and an antenna. The switch communicates with an electrosurgical energy source, such as without limitation, an electrosurgical RF or microwave generator, to convey the state of the switch and activate the generator. The disclosed method provides providing the wireless switch with a unique identifier and associating the generator with the unique switch to ensure only the intended switch can control the electrosurgical generator.

Abstract: Method and apparatus are provided for generating an index associated with non-nutritive suck pattern stability. A method includes measuring a plurality of non-nutritive suck (NNS) pressure samples, generating a plurality of correlation values using the NNS pressure samples, and generating a measure of non-nutritive suck pattern stability using the plurality of correlation values.

Abstract: A bite force measuring device includes a handle having first and second ends. A measurement shaft extends outwardly from the handle first end and includes a distal end relative to the handle. A test plate is positioned on the measurement shaft. The measuring device includes a flexible reservoir positioned inside the measurement shaft that is in contact with the test plate that contains a generally incompressible fluid such that the flexible reservoir undergoes pressure changes when the test plate bears against the reservoir. A plunger shaft is operatively connected to the reservoir and is pushed outwardly therefrom when pressure in the reservoir is increased. The plunger shaft may include indicia indicative of a measurement of a relative bite force.

Abstract: A continuous swallowing movement measuring device includes pressure sensors placed in a line along a direction of an up and down movement of a thyroid cartilage when a food is swallowed, a first one of the pressure sensors placed at a top position of the thyroid cartilage, a second one of the pressure sensors placed along the direction to measure swallows included in a continuous swallowing movement. The device also includes a tool for wearing the pressure sensors and for fixing the pressure sensors to touch an anterior region of a neck of a subject. The tool includes a fixing unit fixes the pressure sensors. The tool also includes a supporter of the pressure sensors supports the fixing unit. Further, the tool includes a holding band holds the supporter of the pressure sensors on the anterior region of the neck of the subject.

Abstract: A force sensing and exercise device for assessment and therapeutic usage is described herein. The force sensing device may include a registration plate, to form a ridge with a body part of a patient and provide a fixed point from which measurements are taken. The force sensing device allows for linear movement as a component of the measurement and the ability to vary exercise resistance continuously over an exercise range. Tactile and auditory feedback is provided to a patient to indicate than an exercise objective has been achieved.

Abstract: An intra-oral pressure monitoring system is provided. The system is beneficial for measuring or monitoring teeth clinching or grinding during sleep. The system includes a generally horseshoe-shaped, elastomeric mouth piece. The mouth piece is dimensioned to reside between the upper and lower teeth of a patient. The mouth piece has a two or more fluid-containing cells embedded therein. The cells are configured to receive pressure applied by the teeth of a patient. The system is able to monitor bite pressures during a patient's sleep or time of resting. A method for monitoring bite pressures of a patient during sleep is also provided.

Abstract: The invention relates to an accessory for an apex locating apparatus, characterized in that it comprises a fitting (16) held with the aid of electrically conducting fastening means (20, 50) to the tooth to be treated or to a neighbouring tooth (14) and which comprises first means (36, 54) for wire-based electrical connection (44) between the apex locating apparatus (2) and the endodonty tool (46), and second means (28, 52) for wire-based electrical connection (34) between said apparatus (2) and the patient. The invention also relates to such an accessory characterized in that it comprises means for wireless electrical connection between said fitting and said apex locating apparatus.

Abstract: A multifunctional airway evaluator for orotracheal intubation includes first and second connected elongated arms, movable relative to each other about a pivot axis, a planar plate connected to the first arm and extending upwardly therefrom, and a gravity-operated angular indicator attached to the planar plate. The plate includes a distance scale on its front face, and the distance scale includes a plurality of spaced apart grade lines aligned radially with the pivotal axis and distance parameters associated with the grade lines, each of the distance parameters indicating a distance between the distal ends of the first and second arms when the arms are in a relative position. The gravity-operated angular indicator includes an axial pin disposed perpendicular to the planar plate, a rotating disk pivotally attached to and rotatable around the axial pin by gravity, and one or more angular measurement marker provided adjacent the rotating disk.

Abstract: A method and system of aligning antennas of an intra-oral and extra-oral electronic wireless device is provided. Three-dimensional anatomical data of at least a portion of an oral cavity of a subject and at least a portion of an external ear of the subject is recorded. A spatial relationship between a landmark in the oral cavity and a landmark in the external ear is determined. A first antenna is modeled based upon the anatomical data of the oral cavity, and a second antenna is modeled based upon the anatomical data of the external ear. The antennas are configured and oriented relative to each other for optimal signal transmission based upon the recorded anatomical data of the oral cavity and ear.

Abstract: The invention relates to medicine and can be used for persons with paralysis of upper and lower limbs. The inventive device comprises a signal processing and transmitting module (1), a coordinate unit (2), functional contacts (3), control contacts (4) and an elastic base plate (5) which is symmetrical with respect to a longitudinal axis and is provided with an unbendable projection (6) on the front part thereof. The plate consists of a central circle (7), peripheral circles (8) which are radially spaced away from the central circle, connecting straps (9) mating with the central circle (7) by one end thereof, whilst the other end is coupled with the respective peripheral circle (8). The unbendable projection is made in a shape of an equilateral trapezoid adjacent to the central circle by the larger base thereof and is upwardly bent at about 20 to 60° angle with respect to the plate plane. The signal processing and transmitting module is arranged on the top surface of the central circle of the plate.

Abstract: A system and method for determining the correct natural head position location of reference planes, i.e., the coronal, transverse, and sagittal planes, relative to a three-dimensional computerized image of a patient's head. This method will allow medical practitioners to accurately measure various soft tissue features of the patient's face and underlying hard tissue structures, e.g., such as dentoskeletal structures, and combining such analysis with profile analysis and treatment planning for full 3D facial analysis.

Abstract: Devices, systems and methods for nerve stimulation for OSA therapy.

Abstract: A system for the detection of bruxism includes an electronics housing configured to be worn on the face of a user. The system further includes a first and second sensor, located on a side of the electronics housing. The first and second sensors are secured firmly to the face of the user, positioned a distance apart from each other, and positioned to rest over a muscle of the face; the distance apart being such that the first and second sensors both rest on the muscle of the face. The system also includes a feedback generator, configured to provide feedback to the user when a clenching event occurs. The system also includes a microprocessor, configured to receive a plurality of inputs from the first and second sensors, determine when the clenching event occurs, and activate the feedback generator to provide feedback to the user upon an occurrence of the clenching event.

Abstract: An intra-oral system is disclosed for assisting an individual in developing intra-oral muscle control and strength, and for facilitating typing of alphanumeric characters on a virtual keyboard. The system may also be used to enable an individual having limited use of the upper extremities to control an electrical apparatus such as a wheelchair, a bed or a light fixture. The intra-oral system includes a mouthpiece having a plurality of cells embedded therein. The cells are configured to receive pressure applied by the tongue of an individual. Movement of the tongue over and against the cells causes an object to be moved over a display. In one embodiment, the object is moved through an obstacle course or over a simulated track as part of a therapeutic regimen. In another embodiment, the object is moved over alphanumeric characters on a digital keyboard, and selected characters are typed by operation of the mouthpiece.

Abstract: The present invention provides an improved method and apparatus for use in diagnosing temporomandibular disorders. The apparatus includes separate maxillary and mandibular appliances, which are sized and configured to fit over and be retained on a subject's incisors. The two appliances both include generally flat, T-shaped platforms that face each other in a confronting relationship for all possible mandibular movements, including excursive movement and protrusive/retrusive movement. When properly fitted on the subject's opposing incisors, the two appliances effectively prevent contact between the subject's opposing upper and lower teeth, including the posterior and canine teeth, and thereby reduce the intensity of clenching of the temporalis muscles. The apparatus thereby can be used to provide an inexpensive way for determining whether an intraoral discluder of this kind will be effective in relieving tension headaches, common migraine headaches, or other temporomandibular disorders.

Abstract: An electronic device for locating the apex of a root canal within a tooth of a dental patient has a display screen on a display component to provide an image indicating when the apex of a root canal has been located. A free end of a first electrical lead is provided for placement within the root canal or in contact with an electrically conductive tool within the root canal. A free end of a second electrical lead is used to establishing a ground on a conductive portion of the dental patient such as a tissue surface within the mouth. The opposite ends of each of the leads is connected to the display component. Removeably attached to the display component is a lead carrier. The detachable lead carrier and the leads mounted thereon can be sterilized as a unit and then attached to the display component, which is bagged in a sterile barrier, for performing the apex locating procedure.

Abstract: A body force measurement system for both assessment and therapeutic usage comprising a non-rigid tongue depressor with a force sensing element attached to it and a means of converting the force sensed into quantifiable data. The system provides convenient method for making body force measurements consistent with current clinical practice and without the need for a fixed registration point.

Abstract: A medical appliance for the treatment of obstructive sleep apnea in a patient, the appliance comprising: a securing device configured to be removably affixed to the patient's jaw; and a biasing member which is insertable behind the soft palate and/or the base of the patient's tongue, thereby providing for the flow of air in the nasopharyngeal airway; wherein the securing device is connected to the biasing member to allow insertion and/or removal of the biasing member from the nasopharyngeal airway.

Abstract: Disclosed herein are scales for assessing lip fullness, severity of perioral lines at rest, severity of perioral lines at maximum contraction or oral commissures. The scales comprise rows or columns of photographs corresponding to different severity categories. Each scale may have a Kappa score of at least about 0.700 for intra-rater and inter-rater reliability.

Abstract: The present invention is an apparatus for detecting and treating bruxism. The apparatus of the invention comprises a sensing unit, a calculation unit and a stimulation unit. The sensing unit is in charge of measuring the interocclusal distance and reporting this distance to the calculation unit. After receiving the information from the sensing unit, the calculation unit archives and processes the information to determine if the sensing event is a bruxism event. When a sensing event is confirmed as a bruxism event, the calculation unit selects an adequate stimulation and sends a request to the stimulation unit, which applies the selected stimulation. The apparatus of the present invention may be suitable for treating both diurnal and nocturnal bruxism and the intrabuccal components may be removed from the mouth when bruxism events are not expected to occur, i.e. during the day for an individual who suffers only from nocturnal bruxism.

Abstract: A tongue location monitoring system, including, one or more position circuits that respond to transmissions from a transceiver, a transceiver that transmits to the one or more position circuits, a control circuit coupled to the transceiver: wherein the control circuit determines the location of a person's tongue based on the responses of the position circuits; and wherein either the transceiver or the position circuits are implanted in the muscle of the person's tongue or placed on the tongue, and the latter is placed outside the person's head.

Abstract: Devices, methods, and systems for measuring the size of gastric pouches. At least some embodiments include a catheter comprising an outer elongate tube, an inner elongate tube disposed within the outer elongate tube, a proximal balloon attached to the outer elongate tube, a distal balloon having a first end attached to the outer elongate tube and a second end attached to the inner elongate tube, at least two detection electrodes positioned on the outer elongate tube relative to at least two excitation electrodes, and a pressure transducer positioned on the outer elongate tube.

Abstract: A multifunctional airway evaluator for orotracheal intubation includes first and second connected elongated arms, movable relative to each other about a pivot axis, a planar plate connected to the first arm and extending upwardly therefrom, and a gravity-operated angular indicator attached to the planar plate. The plate includes a distance scale on its front face, and the distance scale includes a plurality of spaced apart grade lines aligned radially with the pivotal axis and distance parameters associated with the grade lines, each of the distance parameters indicating a distance between the distal ends of the first and second arms when the arms are in a relative position. The gravity-operated angular indicator includes an axial pin disposed perpendicular to the planar plate, a rotating disk pivotally attached to and rotatable around the axial pin by gravity, and one or more angular measurement marker provided adjacent the rotating disk.

Abstract: A system for detecting non-verbal acoustic energy generated by a subject is provided. The system includes a sensor mountable on or in a body region of the subject, the sensor being capable of sensing the non-verbal acoustic energy; and a processing unit being capable of processing the non-verbal acoustic energy sensed by the sensor and deriving an activity related signature therefrom, thereby enabling identification of a specific activity associated with the non-verbal acoustic energy.

Abstract: An intra-oral system is disclosed for assisting an individual in developing intra-oral muscle control and strength. The system may also be used to enable an individual having limited use of the upper extremities to control an electrical apparatus such as a wheelchair, a bed or a light fixture. The intra-oral system includes a mouthpiece having a plurality of air cells embedded therein. The air cells are configured to receive pressure applied by the tongue of an individual. Movement of the tongue over and against the air cells causes an object to be moved over a display. In one embodiment, the object is moved through an obstacle course or over a simulated track as part of a therapeutic regimen. In another embodiment, a character or icon on the display is selected and activated to manipulate an electrical apparatus. Methods for moving an electrical apparatus using a mouthpiece controlled through lingual movement are also provided.

Abstract: An oral device for use with a person in which at least one non-toxic gas pulse is delivered to a predetermined location in the mouth via a device conduit. The oral device may be provided as a kit with at least one device for measuring the subject's responses and representing them as feedback to the subject/clinician. A method of creating a gas bolus pulse train, delivering it to a predetermined mouth area, and monitoring the subject's responses to it, is also shown. The oral device and method may be used as a diagnostic tool, or a therapeutic tool, in swallowing or speech rehabilitation of children and adults who have swallowing, speech, salivary, and/or oral sensorimotor impairments.

Abstract: An apparatus and process for empowering those in wheelchairs and others with loss of limb control to walk, climb stairs, sit in ordinary chairs, use normal bathroom facilities and stand at normal height with their peers. It also provides a means to speed rehabilitation of the injured and a means to deliver more comfortable and effective prostheses while providing superior physical therapy without draining professional resources which includes new simulation and training means. Most of the apparatus is worn under normal clothing allowing them to enjoy a normal appearance. Additional advancements include improved actuator design, user interface, visual means and advanced responsive virtual reality.

Abstract: A system for detecting non-verbal acoustic energy generated by a subject is provided. The system includes a sensor mountable on or in a body region of the subject, the sensor being capable of sensing the non-verbal acoustic energy; and a processing unit being capable of processing the non-verbal acoustic energy sensed by the sensor and deriving an activity related signature therefrom, thereby enabling identification of a specific activity associated with the non-verbal acoustic energy.

Abstract: Root apex position model data associated with electrical characteristic values between a measurement electrode and a mouth electrode in a state in which the distal end of the measurement electrode is located at a root apex position of a root canal is stored in a storage unit. A power supply applies measurement signals of 500 Hz and 2 kHz between the measurement electrode and the mouth electrode. Two different current values flowing between the measurement electrode and the mouth electrode are detected. These current values are compared with the root apex position mode data stored in the storage unit. If the root apex position data includes any data which coincides with the current values, it is detected that the distal end of the measurement electrode is located at the root apex position.

Abstract: A device for preventing bruxism comprises a carrier (1) intended for receiving in a mouth of a user. The carrier (1) comprises at least a part (2,3) of an electronic biofeedback system. According to the invention the carrier comprises a jaw-shaped body which is adapted to lie only on an outer side against at least a part of a jaw of the user.

Abstract: Embodiments of methods and mandibular protruders and positioning devices, comprising, for example: an upper mounting bracket having an upper dental appliance; a lower mounting bracket having a lower dental appliance; and a rail system configured to couple the upper mounting bracket to the lower mounting bracket. Some embodiments comprise a drive motor and/or an initial position adjustment mechanism.

Abstract: A system and method for determining condyle displacement during jaw articulation includes a physical model with corresponding reference points. The physical model is positioned and scanned to obtain positional data representing a first and second bite position. This positional data is used to generate a transformation matrix. The position of at least one condyle is determined in reference to positional data scanned from the physical model. The transformation matrix is used to map the position of the condyle with respect to the second bite position.

Abstract: A probe for measuring oral pressure according to the present invention includes: a balloon 1; a hollow tube 3 that has a first opening portion 3b and a second opening portion 3c and is connected to the balloon so that the first opening potion 3b communicates with an inside of the balloon 1; and a port member 20 with a valve 13 connected to the hollow tube 3 so as to block the second opening portion 3c. The probe for measuring oral pressure according to the present invention preferably further includes a hard ring 8 mounted on a portion between an inflated portion and an attaching portion of the balloon 1. The valve 13 may be a disk-shaped valve with an insertion hole 13a, for example.

Abstract: Measuring isometric bite forces has until now been an impracticable endeavor in clinical practice, since there is no device which is easy to use. Commercially available reusable force sensors were the starting point of the idea to develop a simple device to hold and position these thin-film force sensors while simultaneously protecting them from destructive biting strains. For this reason I developed a bite fork, preferably made of plastic, which can serve as a carrier for these special sensors, and which aid placement on the occlusal surfaces in a repeatable position, without resulting in significant alteration from the habitual bite position.