Abstract: The present invention relates to an articulator. The articulator may significantly improve the coupling force between a maxillary fixing part and a mandibular fixing part. In addition, since the horizontal turning radius of the maxillary fixing part is easily adjustable according to the size of a mandible model, errors that may occur when the state of occlusion between the mandible model and a maxillary model is checked may be easily prevented.

Abstract: A dental articulator is provided in which at least one of the two arms thereof has a base member that is articulated with respect to a bracket element onto which a dental model may be mounted, allowing independent movement of the dental model with respect to the pivot axis hingedly linking the arms.

Abstract: Disclosed is a dental model articulator configured to combine maxillary and mandibular dental model casts with each other. The dental model articulator includes a frame, an arm member rotatably and reciprocatively supported to the frame, an elastic bias unit frontward elastically pressing the arm member with respect to the frame, a first connecting unit formed in the arm member to be connected with the maxillary dental model cast, and a second connecting unit connected to the frame to move reciprocatively through at least one penetration hole and combined with the mandibular dental model cast.

Abstract: An apparatus for use in dentistry to obtain positional data related to movement of a mandible about a maxilla comprises a rigid support frame for supporting a maxilla support member, a positionable mandibular member and sensing assemblies. The support member fixedly attaches to the support frame. The mandibular member is positionable proximate the maxilla member. The sensing assemblies attach to the support frame and connect to the mandibular member to obtain positional data related to the movement of the mandibular member. The positional data is collected by a computing device and stored in a data storage medium as time history files. The files can then be transformed into usable information to replicate the mandibular movement in real time either virtually or mechanically.

Abstract: A dental articulator for connecting upper and lower dental models made from dental impressions of teeth and for moving the mandible in opening and closing, protrusive and lateral motions generally comprises upper and lower arms each having a front end for attachment respectively to upper or lower model. The upper arm includes a pair of condylar slots for receiving journals of the lower arm such that the lower arm may perform the opening and closing motion, the protrusive movement, and lateral movement of the mandible. A cantilever spring attached to the upper arm biases the journals toward the centric occlusion position. Slot stops limit protrusive movement and axle stops limit lateral movement.

Abstract: A tooth model occlusion testing device comprises an upper jaw and a lower jaw that pivotally connect to each other. Two tooth model bases are respectively received in the upper and lower jaws, and are provided with a plurality of perforations to insert a tooth model. The upper and lower jaws are thereby capable of turning to an open and occluding position to evaluate the alignment of the upper and lower parts of the tooth model in the occluding position.

Abstract: A dental model articulator includes two hinge-jointed arms, each arm having segments connected to a hinge joint having mating elements, one integral to each segment of an arm. One element includes two cymbals that are coaxial on a major hinge axis and concave facing which resiliently capture between them a node of the mating element on the other segment which has the form of opposed, outwardly facing convexities. Multiaxial motion between the segments of each arm is accomodated by the rotation of the convexities of the node within detents at the apices of the cymbals. The extremities of each arm terminate in cylindrical rod-like elements that are parallel to the major hinge axis. The rods engage with transverse, cylindrical channels either cut-in, molded-in or affixed to the models. With the models positioned in centric occlusal relationship and the arms adjacently positioned and engaged, the four rods are adhesively fixed in the channels.

Abstract: Disclosed is an articulator for completely reproducing mandibular movement of a living subject by performing adjustment of occlusion by regulating condylar spheres and condyle boxes disposed between maxillar and mandibular frames carrying maxillar and maxillar casts with a Bennett lift mechanism. The Bennett lift mechanism is mounted independently of the condyle boxes and on a base axis connecting the condylar spheres independently of the condyle boxes, so that vertical regulation of movements of a mandible in vertical, lateral and anteroposterior directions can be individually reproduced. Also, opening and closing movement of the maxillar and mandibular casts around the base axis (intercondylar axis) can be performed in an centric occlusion position.

Abstract: An articulator for completely reproducing the mandibular movement of a living subject by performing adjustment of occlusion by regulating condylar spheres and condyle boxes disposed between maxillar and mandibular frames carrying maxillar and maxillar casts with a Bennett lift mechanism. The Bennett lift mechanism is mounted independent of the condyle boxes and on a base axis connecting the condylar spheres independent of the condyle boxes, so that the vertical regulation to the movements of the mandible in the vertical, lateral and anteroposterior directions can be individually reproduced. Also, the opening and closing movement of the maxillar and mandibular casts around the base axis (intercondylar axis) can be performed in the centric occlusion position.

Abstract: A caddy is provided for either permanent or removable attachment to a dental articulator for retaining one or more bite registrations at or near the dental articulator.

Abstract: A dental articulator comprises-a maxillary clamp, a clamp support, a mandibular clamp and a mandibular clamp detent. The clamp support includes a first post defining a first set of engagement sites, a second post defining a second set of engagement sites, and a hinge pivotally supposing the maxillary clamp. The mandibular clamp detent engages with corresponding engagement sites of the first and second sets of engagement sites to position the mandibular clamp relative to the maxillary clamp. In preferred form, the mandibular and maxillary clamps each include a collet for embracing a first dental model and a cam threadedly engaging the collet for tightening the collet around such a dental model. In an especially preferred form, the collet includes a flexible band defining periodic apertures along a length of the band and the cam defines a thread engaging a potion of the periodic apertures to loosen or tighten the collet.

Abstract: A jaw movement recording device, articulator and methods disclosed utilize a lower marking plate with front, rear, left and right side marking pins that cooperate with an upper marking plate and depressions and a bearing pin in such a way as to give an accurate recording of the movement of a patient's lower jaw in a wafer between the two plates. An articulator has a lower frame with upright side posts having upper pin-like portions and an upper frame with fossa holders and a pliable material that form fossa socket patterns. Tension springs extending between the frames at the front and rear enable a constant tension in forming the fossa socket patterns.

Abstract: A dental articulator includes an upper frame member and a lower frame member modeled substantially after a maxilla and mandible of a human jaw, respectively. The upper frame member includes a mounting area for attachment of an upper or maxillary dental cast. Two opposing fossae on the upper frame member include downwardly opening sockets similar to the fossae of a human jaw. The lower frame member includes a mounting area for attachment of a lower or mandibular dental cast. Two opposing condyles extend upwardly from the lower frame member to fit within the sockets of the fossae on the upper frame member. An elastic band is placed around the upper and lower frame members to yieldingly maintain the condyles within the sockets of the fossae. Each condyle/fossa pair forms a temporomandibular joint similar to that in a human jaw and allows the lower frame member to undergo protrusive and excursive movements which closely simulate the movement of a human mandible.

Abstract: The dental articulator to test the "bite" of cast upper and lower jaw dentures in which a rearward horizontally oriented pivot of the upper jaw denture is mounted for pivotal traverses in an open arcuate-shaped cooperating support of the lower jaw denture and this simple articulating construction and vertical adjustment between the two dentures is due to a large extent to the use of rubber bands to hold the referenced pivots on their arcuate supports.

Abstract: In a dental articulator having articulator arms which in their working position extend forwards, of which one is mounted in swivel/sliding joints to pivot about a swivel axis extending at right angles to the vertical longitudinal centre plane, and provided on the sides of the articulator arms facing one another are placement areas for a lower tooth model or upper jaw tooth model, and the tooth models can be fixed detachably by centering devices to the respective associated articulator arms, two different upper parts are associated with the articulator which can as desired be mounted accurately to and dismounted from the common lower part, and the centering devices are arranged on the respective associated upper part so that they are in an accurately fitting relationship to the centering device of the lower part in the mounted position of the associated upper part.

Abstract: A dental articulator having an upper support member for supporting a dental cast and a lower support member for supporting a second dental cast. A polycentric hinge joint is provided for simulating the temporomandibular joint of a patient. The polycentric hinge joint comprises a fossae block secured to the upper support member and a condyle member secured to the lower support member which engages a fossae recess in the fossae block. A spring is provided for securing the lower support member to the upper support member and simulating the muscles used for mastication. A pair of wires are provided for simulating the ligaments of a patient. The upper end of each wire passes through an opening in the upper support member. The lower end of each wire is secured to the lower support member. A limiting block is provided on the upper end of each of the wires so as to restrict its movement.

Abstract: The present invention provides an average movement articulator capable of being set for free movement, having lower frame, and an upper frame capable of being moved longitudinally, vertically and laterally and being turned about a longitudinal axis relative to the lower frame and of being turned about a lateral axis for free movement in analyzing occlusion, restoring decayed teeth and making crown bridges.

Abstract: The present invention comprises an articulator for registering an upper dental cast to a lower dental cast. The articulator includes an upper member subassembly with left and right sides and a lower member subassembly with left and right sides each composed of plastic material. The articulator further has at least one hinge member engaging one of the members allowing one of said members to pivot relative to the other member and a coupling means flexibly connecting the upper member subassembly to the lower member subassembly. The articulator further includes disconnectable connection means joined to one of the members for disengaging the upper member subassembly and the lower member subassembly whereby the upper and the lower member subassemblies may be separated, and a clipping means for removably securing the upper member subassembly to the upper dental cast and the lower member subassembly to the lower dental cast such that said upper and lower dental casts can be properly and flexibly aligned.

Abstract: A dental model and articulation system are disclosed. The dental model comprises cast mold material formed around an elongate pin or rod. A longitudinal, tapered pin or rod is embedded in the model during pouring of the casting material. The pin or rod extends longitudinally through the base of the model beneath the teeth impressions of the model. The longitudinal axis of the pin or rod lies in general parallel alignment with the line of teeth in the model. The pin or rod can be removed from the model, and the model can be cut into several sections or dies. These sections or dies can then be reassembled back on the pin or rod in the precise, true relationship that existed in the model prior to the model being cut into sections. The extending ends of the pins or rods can be removably attached to a flexible member such that models of the upper teeth and lower teeth of a person's jaws can be moved in lateral or protrusive movement and back to centric occlusion.

Abstract: A dental articulator having a upper support member for supporting a dental cast and a lower support member for supporting a second dental cast. A polycentric hinge joint is provided for simulating the temporomandibular joint of a patient. The polycentric hinge joint comprises a fossae block secured to the upper support member and a condyle member secured to the lower support member which engages a fossae recess in the fossae block. A spring is provided for securing the lower support member to the upper support member and simulating the muscles used for mastication. A pair of wires are provided for simulating the ligaments of a patient. The upper end of each wire passes through an opening in the upper support member. The lower end of each wire is secured to the lower support member. A limiting block is provided on the upper end of each of the wires so as to restrict its movement.

Abstract: A model of the human head having a movable lower jaw is used in the analysis of gnathological relationships. The model receives reproductions of a dental patient's upper and lower dental arches and simulates the functional movements which occur during mastication and, in so doing, permits visual observation of the mandibular joints so that a course of therapy may be chosen.

Abstract: An articulator comprising two U-shaped wire frames joined by hinges and springs. The frames are snapped onto plastic clips cemented to dental casts. The clips allow the casts to be removed and reintroduced in repeatable positions. A slip-joint provides for left and right height adjustment between the dental casts to be adjusted or separated completely.

Abstract: An artificial denture-skull for dental teaching and practice purposes, consisting of a model of an upper jaw equipped with teeth and which is arranged on an upper support plate, and a model of a lower jaw equipped with teeth which is arranged on a lower support plate, and wherein both support plates on the inner surfaces facing the dentures for the mounting of the jaw models incorporate an O-ring seating arrangement for the jaw models, against which there can be clamped the jaw models through the application of their base surface with the interposition of a clamping device extending through the support plates and which can be manipulated from the outside. For the most possibly exact simulation of the human head, the denture-skull can be also connected with a cerebral cavity-defining skull portion, as well as with a pocket-shaped covering which includes a mouth opening for the formation of a complete phantom head.

Abstract: A dental articulator. The articulator holds a dental model of the upper teeth of a patient in selected orientations with respect to a dental model of the patient's lower teeth and permits the dental models to be readily removed from and reattached to the articulator in a desired selected orientation between the models.

Abstract: This invention relates to a physiological stereo articulator comprises a maxillary mechanism and a mandibular mechanism, and the lower frame member in the mandibular mechanism can turn about a center which is shifting while opening and closing as the human mandible does, and at the same time with the shifting of the center of turning, the vertical swinging of the lower frame member is caused. This construction permits simulation of the movement of the lower frame member to practical movement of the human mandible.

Abstract: This occlusion simulator for dental prostheses, reproducing mandible motions, mainly consists of two articulated forks connected by a small rod. The upper fork is connected to the small rod via the fork-holder and the longitudinal articulation pin. The lower fork is connected to the small rod via the lower fork-holder and the ball-joint whose lateral excursion is limited by side plates mounted on the sides of the upper fork-holder and by pistons with return springs.

Abstract: In order to allow positive and quick fixation as well as centric fixation of a condyle portion with a very simplified operation, a semi-adjustable dental articulator is of the construction that an adjusting-and-fixing knob of the adjustable guide plate for the condylar box is provided to protrude beyond the upper surface of the condylar box, and also that an orbita indicator is detachably, semi-fixedly and slidably mounted on the incisal guide pin. On a corner edge line between a back surface and an outer side surface of each of a pair of laterally spaced upright frame portions of an articulator body is provided with an indicator notch aligned with an occlusion plane in height and another indicator notch aligned with an ear in height.

Abstract: A mounting apparatus for a dental articulator including a stationary base, a rigid support member extending from the base and an upper clamp for releasably receiving and supporting the articulator upper member. An adjustable support piece is retained on the rigid support member and is adapted to contact the articulator lower member to limit the lowermost position thereof while permitting at least lateral movement of the articulator lower member relative to the articulator upper member to thus stimulate human jaw movements.

Abstract: A dental articulator is disclosed, having a lower frame with a pair of condyles thereon defining a hinge axis, an upper frame carrying a pair of guides for slideably and pivotally receiving the condyles to permit the relative positions of the upper and lower frames to simulate movements of the human jaw, and retainers outboard of the condyles on opposite sides of the articulator connecting the upper frame to the lower frame and urging the upper and lower frames into a centric relationship while permitting the frames to be moved to simulate human jaw movements. The retainers are preferably pivotally joined to the upper frames on the hinge axis and may be loops of elastomeric material. A sleeve may be provided on each retainer so that a loop of the retainer protrudes from each end of the sleeve. The sleeve and retainer function as a hinge when pivoting the articulator to a fully opened position.

Abstract: An articulator in which all natural chewing movements (articulation) and the biting movement (occlusion) shall be simulated. To this end a fixture is positively guided by means of a spring loaded elongated shaft relative to a base in three degrees of freedom. The positive movement proceeds via the longitudinal shaft as well as slanted surfaces extending obliquely relative to the longitudinal shaft and additionally a cam member including a cam follower is provided which determine the path of movement in the three axes of the articulation. In order to allow the occlusion the fixture can be pivoted relative to the base around a lateral shaft.

Abstract: A dental articulator of simplified structure, capable of relatively forward and sideward movements to simulate human jaw movements, includes component parts representing lower jaw and maxillary structures held together at simulated condylar joints, wherein spring means press simulated condyles against matching condylar joint walls to hold them in such position when desired and disengaging means are provided which, when actuated, move the spring means away from the associated condyle part, facilitating relative movement of the simulated jaw parts at such joint. When both ends of the spring are moved away from the condyles the jaw portions of the articulator may be separated so that examination of the wear surfaces of dentures held therein may be effected easily.

Abstract: An articulator for observing occlusion, in which the movement of the mandible with respect to the maxillary is transmitted exactly to a mandibular cast so as to cause an identical movement of the latter, and which can reproduce repeatedly the movement as it was at a desired time by tracing the condyle paths which are automatically formed in solid material by cutting tools mounted on members connected to the mandibular cast.

Abstract: A dental articulator comprises a lower jaw member having a pair of condylar elements and a pair of upwardly extending arms, and an upper jaw member having a pair of glenoid cavities, each condylar element being held in each of the glenoid cavities to articulate the upper and lower jaw members, wherein a pair of condylar shafts for supporting a pair of condylar elements are mounted on the free ends of the arms in horizontal and inward directions.

Abstract: The present invention relates to a device for use in dentistry as an aid to the production of very accurate dental restorations such as inlays, crowns, bridges and the like. In its essentials the invention provides an instrument having two parallel plate members, spaced apart, wherein the top plate preferably has one straight edge at the rear thereof and a forwardly projecting area to which a stone model may be secured. The lower plate is rectangular and is adapted to have secured thereto a stone model of the patient's mating jaw, the plates being mounted for relative vertical movement to bring the opposed teeth of the two jaws into the patient's functional bite position. The upper and lower plates are supported vertically and in spaced parallel relation by two posts disposed laterally of the central protruding portion of the top plate and on either side of the stone jaw reproductions. The posts slide within outer upper cylinders secured to the top plate.

Abstract: A dental articulator has a generally horizontal base, one end of which acts as the lower bow. Projecting upwardly from this base is a stem. Mounted on the top of the stem by a slip-on construction is a removable hinge support. The hinge support has a pair of spaced vertical flanges, each of which has an elongated slot inclined to the horizontal at an angle approximating the angle between the jaws that the human condyles make upon forward and rearward motion. An upper bow is hinged to the flanges by a hinge pin passing through the elongated slots. Elastic bands engage both ends of the pin and the hinge support to normally keep the pin in the lower end of each slot. The bands are resilient enough to allow the operator to pull the upper bow backwardly along the condyle angle to check the teeth for forward and backward clearances and also to allow the operator to twist the upper bow with respect to the lower bow to check for clearances upon lateral movement of the teeth.