Abstract: A clamp to be used during the performance of cerebrovascular thermography wherein said clamp compresses superficial temporal arteries without introducing heat artifacts is disclosed. The clamp is provided with two oppositely disposed contact members, the distance between which is adjustable. Also, one contact member is provided with resiliency means.

Abstract: Upper and lower frames of jaw movement analyzing apparatus is disclosed. A segmented clamp interconnects the side arms of the lower frame to a forward transverse rod in a manner to simplify locating the jaw hinge axis. The clamp includes a screw for gripping the rod with two of the clamp segments for maintaining the arms in adjusted angular positions while permitting further easy adjustment. The clamp also includes separate ball screws engaging a side arm to maintain axial positioning of the arm and permitting further easy adjustment. A lock screw extends through the clamp segments to lock the arms in the located hinge axis position.

Abstract: A paraocclusive instrument including two holding jaws laterally applied to the lower dental arch and a basic element in communication with the holding jaws in the form of a rod to transfer movement of the lower jaw to display and/or recording devices. The holding jaws are pivotally connected with pivot arms which are pivotally mounted at the basic element and extend divergingly from this bearing position at the basic element to the connecting points with the holding jaws. A lockable adjustment device is provided at the basic element for setting the mutual position of the pivot arms. The adjustment device includes a rod mounted at or in the basic element which is longitudinally displaceable and articulated to the pivot arms to positively control them and which, if displaced longitudinally, pivots the pivot arms. It is advantageous for the end of the rod facing the pivot arms to be connected with the pivot arms by guide arms.

Abstract: A face bow for use with an articulator. The face bow has a caliper having ends to engage the ear area of a patient to support the articulator, a naison suture engaging means to engage the nose area of the patient and a fork to engage the teeth of a patient. Adjusting means to adjust the position of the naison indicator engaging means, the auditory meatus engaging means and the fork relative to each other. The face bow being adapted to be transferred to an articulator for use in adjusting dental models on the articulator.

Abstract: A dental face bow comprising a U-shaped spring member including two opposing uniformly acting spring biased legs and a central portion. The U-shaped spring member has a cross section with vertical and horizontal cross sectional axes. The vertical axis is at least twice the length of the horizontal axis. The bow includes two inwardly extending earpieces, proximate the ends of the legs, adapted to fit the external acoustic meatuses of a dental patient. A bite plate for holding a material in contact with oral structures of a dental patient and adjusting means for rigidly securing said bite plate in a fixed relationship with said earpieces are provided.

Abstract: The present invention provides a mandible manipulation device that, in a preferred embodiment, consists of a frame having a pair of elongated, lengthwise members that are adjustably connected to a transverse member. In the preferred embodiment, an impression tray, that is provided to hold a mouthpiece against the teeth of the mandible, is connected to one of the lengthwise members. A mandible support, to support the underside of the mandible, is connected to the other of the lengthwise members. The lengthwise members are adapted for adjustable movement to a fixed position in which the mandible is held between the mouthpiece and the mandible support. The mandible can thereafter, be manipulated by manipulation of the lengthwise members.

Abstract: Disclosed herein is a device for the representation of condylar movements of a patient and their correct simulation which includes models of sets of teeth to determine the required corrections to the biting surfaces in order to obtain ideal occlusion. The device includes an articulator with the lower part thereof able to be brought into a predetermined three-dimensional relation with respect to an upper part of the articulator and having two blocks having guide elements on the lower part of the articulator to support condyle balls of the upper part of the articulator. The device further includes a lower jaw recording bow and an upper jaw recording bow which can be brought into an active and predetermined relation with respect to the articulator and which disposes of at least three recording plates with corresponding recording pins as well as positioning spoons for the combination of a lower jaw dentition model.

Abstract: A face-bow device for registration of a patient's face and for transferring the registration to an articulator, for use in making dentures or parts thereof, comprises a bite fork on a bite fork support, an adjustment structure in which bite fork support is insertable, and a bow extending from ear to ear in front of the patient's face, on which bow the ajustment structure is mountable. The bow has two arms fixedly connected to each other. Each arm has its free end formed and adapted to be placed in the patient's ear meatus. The arms have a rounded form and are made of a resilient material in order to make them resiliently outbendable at least to such an extent that the bow having its free ends at a distance from each other suitable to the distance between the openings to the patient's ear meatuses in outbent condition is movable over the sides of the patient's face in order to place the ear bow ends into the patient's ear meatuses.

Abstract: A method and apparatus for recording condylar motion and utilizing such recording in a dental articulator involves the production of three-dimensional solid recordings formed by the patient executing full mandibular motion, and transferring the recordings under conditions of accurate alignment to a dental articulator where they function as bearing surfaces for the precise reproduction of condylar motion.

Abstract: The apparatus comprises a first holder (10) fixed stationarily relative to the upper jaw to the patient's head, and a second holder (16) which is secured to the lower jaw. The second holder contains a number of distributed transmitters (S1, S2, S3) which successively supply stepwise ultrasonic pulses. A supplied ultrasonic pulse is successively received by all of the receivers (E1, E2, E3) of the other holder (10). By the transit times, the distances between the receivers and the activated transmitter may be noted. Changes of the sound velocity are detected by a reference path (S4R, E3; S3, E4R) and used for the correction of the transit time signals. By means of an additional, freely movable holder which also carries a number of transmitters and which contains a scanning tip, the position, data of individual teeth or of other points of the mouth may be imputted into the computer.

Abstract: An apparatus for measuring the three-dimensional position and attitude of upper and lower clutches attached on patient's maxillary and mandibular teeth for computerized measurement of the mandibular movements necessary for the fabrication of dental prostheses is disclosed. The apparatus includes a part of a sphere that is fixed to the mandible and which is marked with a reference line and a part of another sphere of substantially the same radius as that of the above sphere, which is fixed to the maxilla and which is also marked with a reference line. The surfaces of the two spheres are caused to slide against each other, with their centers being in alignment, thereby achieving the measurement of the relative attitude of the two spheres.

Abstract: A system useful for recording or providing information concerning the optimal esthetic position and angulation of the anterior teeth of a dental patient during restoration of teeth with crowns or the construction of dental prostheses, the system utilizes five principal components:a multi purpose positioning face bow including curved side arms adjustably interconnected by a linakage device for suspension from the ears of a patient with the linkage device and an associated bracket positioned below mouth level,the bracket adapted to support either, an adjustable transparent screen in a substantially vertical plane and positioned relative to a patient's mouth to obtain a transferable prescription of the position and angulation of anterior teeth for use on an articulator in another place, or a bite fork jig providing support for a interchangeable and invertible bite fork and an adjustable nose pointer, or a camera positioning frame for mounting a camera in fixed and constant relationship with the patient's anterio

Abstract: A novel face bow and method of its use for accurately transferring gnathological relationship data from a patient to an articulator, the face bow including radioluscent arm pieces with radiopaque markers or indicators for locating critical points, the method of use comprising the mounting of the face bow on a patient in generally conventional fashion and then producing a cephalometric head x-ray of the patient with the improved face bow in place, the radioluscent arm pieces permitting anatomical features of the patient to be clearly viewed with precise correlation to reference planes. Radiopaque markers are located at various selected points on the face bow to accurately reflect the position of points of interest, such as an articulator's axis of rotation, such that these points become superimposed with the patient's anatomical features on the cephalometric head film.

Abstract: Apparatus for fixing a plaster cast in an articulator for producing dental prostheses, including a three-point support (5) which is mainly defined by a body (8) to which two coaxial projections (15,16) are fixed and with which a small lath (11) is slidably received, the longitudinal direction of the lath (11) being perpendicular to the general longitudinal direction of the projections (15,16).

Abstract: A dental pantograph capable of measuring mandibulary movement includes right and left side housings have orthogonally located X, Y and Z scales. The housing further includes X, Y and Z scale transducers for reading reference marks on the respective scales. The scales are slidable with respect to the transducers. The housings are located adjacent to engagement members with one of the housing or the engagement member associated with the mandible and the other associated with the maxilla. The scales extend between the housing and the engagement member and move with respect to the transducers in the housing by movement between the housing and the engagement member. The transducers produce electrical output signals which are fed to an appropriate signal processor, such as a microprocessor, for producing a readout indicating the mandibulary movement.

Abstract: A method and apparatus for performing prosthodontic work comprises a face bow formed from a plate which supports impression styli which, when removed from the patient's head, is incorporated as the upper arm of the dental articulator. At least one, but preferably two, impression receptacles containing impressionable material are detachably secured to a lower face bow in registration with the stylus on the upper face bow to form the impression. Each receptacle is removed from the lower face bow after age hardening of the impression, and is secured to an articulator base at a position which maintains registration between the stylus and the impression formed in the receptacle. The impression formed thus forms a condylar guide hinge for mounting the upper arm of the articulator, preferably the upper face bow to the base, for simulating the condylar movement of a particular patient with respect to dental impressions to be used in forming dental prostheses to be worn by the patient.

Abstract: The method and apparatus for positionally indexing the upper segment of the split ramus with respect to the maxilla, during a sagittal split ostotomy, to insure proper occlusal position of the condyle which includes positively anchoring a template to a substantial portion of the maxillary arch and providing a rearwardly-extending indexing paddle fixed to the template to overlie the ramus to permit positive indexing reference of the occlusal position of the condyle required for successful completion of the operation.

Abstract: The simulator includes an upper and lower facebow for mounting on a patient to record and later reproduce the three dimensional movements of the patient's mandible. The upper frame has two receptacles mounted thereon having a bore opening toward the anterior portion of the facebow. A molding material is disposed within the receptacles and the lower frame has two styli projecting into the receptacles for indenting the molding material to make an innerocclusal record during the movement of the patient's mandible. The frames are then removed and dental casts are affixed to the frames. The innerocclusal record formed in the molding material is used to reproduce all of the patient's mandibular movements.

Abstract: The present invention relates to a combination appliance, also known as a mounting aid, for holding and fixing a transfer bow, for pivotably holding and setting the desired angle of inclination of a frame part of an articulator, and for fixing superimposed jaw casts while mounting the cast of the opposite jaw in the articulator, by means of plaster of Paris. For this purpose, the combination appliance possesses a U-shaped cradle, the base surface of this cradle forming the setting-up surface, in order to guarantee that the combination appliance stands securely. A support for the transfer bow is fitted near the upper end of each sidewall, this support forming several supporting points, it being possible to fix the transfer bow on the support by means of a locking device.

Abstract: A self-centering dental face-bow comprising an elongate cross-bar which is adapted to be disposed across the front of a dental patient's face in spaced relationship thereto, a pair of arms extending transversely from the cross-bar in order to present each in spaced relationship along an associated side of a patient's face, a pair of hinge pointers of which each extends transversely from one of the arms toward the other arm to engage an associated side of the patient's face, a mount which is generally centrally disposed on the cross-bar and is adapted to carry various dental appliances which are to be engaged by a patient's mouth, and the arms are movable equidistantly in relation to the mount toward and away from each other in the direction of length of the cross-bar.

Abstract: A jaw hinge-axis locating device for securing a dental face-bow of the type having hinge pointers to the face of a dental patient with the hinge pointers of the face-bow in axial alignment with the patient's jaw hinge axis, the device includes a pliable base member which is adapted to be adhesively secured to a patient's face over one of his jaw hinge condyles, a receptacle disposed on the base member which is adapted securely to receive a hinge pointer of a face-bow with the receptacle in alignment with a patient's jaw hinge-axis thereby to locate and maintain a hinge pointer of a face-bow in alignment with the jaw hinge-axis of a patient.

Abstract: The simulator includes a maxillary and mandibular facebow, a maxillary and mandibular support and an incisal pin. Receptacles are mounted on the ends of the side arms of the maxillary facebow, and the side arms of the mandibular facebow have styli disposed thereon projecting into the receptacles of the maxillary facebow. Means are provided on both the facebows for the attachment of labial cores and/or bite rims and means are provided on both the supports for the attachment of study casts.The invention also includes a method, using the simulator to record jaw movements.

Abstract: The invention relates to articulator devices for reproducing the movements of the mandible.The device according to the invention comprises means for sampling the movements of the mandible, composed of an upper plate, fixed to the patient's skull and a lower plate which is fixed to the mandible by way of a buccal fork. Six displacement sensors connect the two plates together, said sensors being joined to the said plates by way of swivel joints. The device further comprises an articulator composed of two plates on which are secured the casts of the upper and lower jaws of the patient, which plates are joined together by way of artificial muscles occupying the same position as that occupied by the sensors and each muscle comprising a servo-motor controlled by a sensor.The invention finds an application in the remote- or delayed-testing and adjusting of dental prostheses.

Abstract: A protractor-comparator type tool is used to determine characteristics of a recorded path of a patient's jaw movement for purposes of setting a dental articulator.

Abstract: The invention relates to a face bow serving to transfer jaw models to an articulator in correct relationship to the skull. It consists essentially of two L-shaped side arms which are connected by pivot bearings to a base plate at two oppositely located peripheral pivot points for scissors-like movement, and which can be locked in the overlapping region of the ends of the transverse portions of the L-shaped side arms. The pivot bearings (12,13) are disposed in the respective L-bends (14,15) of the L-shaped side arms (2,3). In the middle between the pivot bearings (12,13), the base plate (16) has a slot (23) whose longitudinal edges (24,25) extend parallel to the longitudinal axis (26) of the face bow (1) and through which projects the locking means (11), passing rotatably but non-slidably through the free ends (8,9) of the transverse portions (5,7) in the overlapping region.

Abstract: A dental face bow which is readily fittable to a patient's head includes a pair of contact members, such as ear pieces, to be positioned against aural-temporal areas, such as external auditory meatuses, on opposite sides of the patient's head, members to support the contact members, a threaded moving device, which is a thumb wheel operated telescoping unit, for simultaneously moving the supporting members and the contact members nearer together or farther apart, as desired, in a straight line path, in response to rotation of a part of the moving device, e.g., the thumb wheel and auxiliary telescoping means joined to the supporting members for the ear pieces and parallel to the threaded telescoping means, to prevent relative movement of the supporting members.

Abstract: An apparatus (10) for recording motion of the mandible relative to the maxilla in reconstructive dentistry comprises a lateral bar (16) attachable to the upper jaw. A pair of stylii (22) are mounted for spring-assisted vertical movement in the bar (16) for cooperation with an underlying tracing plate (36) attachable to the lower jaw. The apparatus (10) can be utilized with patients having dentulous or edentulous mouths. In the preferred embodiment, an adjustable bearing pin assembly (72) is utilized to control minimum spacing between the upper and lower jaws during recordation of the mandibular motion.

Abstract: A facebow for use in measuring the positions of the temporomandibular joints of a patient relative to the maxillary teeth of the patient so that such positions may be transferred to an articulator may be constructed so as to utilize two normally spaced side arms which are connected by a mechanical structure permitting the arms to be moved linearly toward and away from one another. A mechanical structure is provided for accomplishing such movement in such a manner that when either of the arms is moved the other arm is concurrently moved in a corresponding manner. The connecting structure carries a frame including a bite fork or equivalent adapted to be positioned in the mouth of a patient along or adjacent to the maxillary teeth in making an impression of these teeth. The frame carrying the bite fork is capable of being adjusted relative to the connecting structure and thus relative to the arms.

Abstract: A face bow frame to facilitate the occlusal restorations which can readily be adapted to the patient about either the arbitrary axis of rotation of the condyle or about the exact hinge axis of the center of rotation of the condyle and which face bow frame can be readily adapted to any of several different types of known articulators.

Abstract: An orientation guide for adjustment of the occlusal plane of a set of dentures relative to the cranial anatomy of a patient includes a flat plate having a curved bite piece and a pair of laterally and distally extending wing sections projecting in opposed directions from the proximal end of the bite piece. A pair of wire guide extensions are supported in the distal ends of each of the wings and include end sections adjustably supported parallel to and above the wings and adapted to be aligned with the patient's ala-tragal line to facilitate parallelism of the occlusal plane to that line.

Abstract: An upper frame including parallel side arms is supported on the patient's ears and attached to a transverse rod supported on the bridge of the patient's nose. A record plate depends from each side arm overlying each of the patient's temporomandibular joints. A lower frame is attached to the lower jaw by means of an adjustable clutch. Adjustable side arms carrying movable styluses engage the record plates on the upper frame. Movement of the styluses over the record plates is monitored to obtain measurements of the joint movements. A tooth separator swingably mounted on the transverse rod of the lower frame separates the rear teeth slightly when the jaw movements are being measured. After the hinge axis position has been located on the record plates, an adjustable straight edge is utilized to indicate the true horizontal plane of reference formed by the two hinge axis points and the point on the patient's nose.

Abstract: Jaw movements are measured mechanically and electrically. The information is used to adjust guide boxes on a dental articulator which cooperate with fixed styluses to simulate jaw movements. The information is also used to select preformed guide blocks with fixed walls. Such preformed guide blocks are adjustably mounted which causes change of the orientation of the fixed walls. Also disclosed is a hinge bracket for use in positioning preformed guide blocks for simple hinging action in an articulator. Further disclosed is a pair of alignment members having laterally extending openings which facilitate lateral adjustment of an articulator upper frame on fixed styluses of a lower frame.