Abstract: An articulator for positioning a pair of dental casts relative to each other is disclosed which comprises a pair of members adapted to being connected to each other for pivotal movement relative to each other, each member comprising a central portion having a hooked end and a forked end with the forked end having an outer tine, an inner tine and a pin connected between the tines, and a ball connected to the central portion by a spline.

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 full reproduction articulator faithfully and accurately reproduces jaw movement, particularly the chewing movement, including individual differences. It includes a mandibular model member (10), a base (11) erected on this mandibular model member (10), two condyle balls (12, 12) projecting from this base (11), a maxillary model member (13) that occludes the mandibular model member (10), and condyle boxes (17) linked to both sides of the maxillary model member (13) and in contact with the two condyle balls (12, 12) for regulating movement in the anterior/posterior direction, left/right direction and vertical direction of the maxillary model member (13). A Bennett lift mechanism (16) is also provided on the base (11) for lifting the maxillary model member (13) from the working side condyle ball (12) when the maxillary model member (13) moves in the left/right direction, independently of the working side condyle box (17).

Abstract: It is an object to provide an articulator with which upper and lower jaw models can easily be manufactured, corrected and adjusted so that precise upper and lower jaw models are manufactured, the structure is simplified and operability is improved. An upper jaw model mount, on which an upper jaw model is mounted, is combined with an upper jaw model joining member such that adjustments in the right and left directions can be performed. The upper jaw model joining member is combined with a stand through a slide support mechanism such that right- and left-hand heights can independently be adjusted. A lower jaw model joining member is combined with the stand through a slide guide mechanism such that fore-and-aft directional adjustment can be performed. A lower jaw model mount, having a lower jaw model joining member on which a lower jaw model is mounted, and an incisal table are combined with each other.

Abstract: An oral surgery simulating device for planning an oral surgery for a patient including a stand having a base, a device for receiving a cast of a mandible of the patient movably connected to the base, a device for receiving a cast of a maxilla of the patient connected to the stand and positioned atop the cast of the mandible and a pointing unit releasably connected to the stand for aligning the cast of the mandible and the cast of the maxilla with relation to Frankfort's horizontal plane to thereby provide a replica of an upper and lower jaw of the patient. The device for receiving the cast of the maxilla is adjustable in a lateral direction and rotatable. The pointer unit includes a pole, a C-shaped clamp connected to and slideable along a length of the pole and first, second and third pointers extending from the C-shaped clamp for measuring the upper and lower jaw of the patient in relation to Frankfort's horizontal plane.

Abstract: A hand-held dental articulator, comprising a first frame, a second frame, and a support structure coupled to the first and second frames. The first frame is configured to accept for fixation thereto a first dental model. The second frame is configured to accept for fixation thereto a second dental model. The support structure is configured to support the first frame in opposing and overlapping relationship with the second frame. The support structure includes a manual surface that substantially conforms to the curvature of an operator's palm, such that the articulator is easily and comfortably held in the operator's hand during use.

Abstract: A dental articulator is disclosed, with condylar housings located in inteangeable fashion in mounts on the upper member of the dental articulator for accommodating and guiding condyles fixed to the lower member, where horizontal guide elements for the condyles for simulating the sagittal movements of the mandibular joint and Bennett guide elements for simulating the transverse movements of the mandibular joint are located in the condylar housing.

Abstract: A dental model articulator includes two hinge-jointed arms, each arm having segments connected at 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 accommodated 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: A dental articulator structure for use in registration of a pair of casts of a dental model which are positioned in an opposing and spaced relationship. The articulator structure includes at least one axially rigid support member having opposing ends from which multi-piece cast attachment members may be orthogonally attached. The at least one axially rigid support member and the orthogonally attachable cast attachment members being an articulator structure that locates the axially rigid support member substantially close to the back molar face of the opposing pair of dental model casts such that confronting translational movement of the dental model casts is prevented in a plane parallel to the axially rigid support member, especially confronting translational movement in a region where back molars may be missing in a dental model.

Abstract: A system for casting a dental model has first and second, hollow molds that are mounted on first and second mounting members. The mounting members have distal ends that extend into respective molds and proximal ends extending away from the molds. The molds are retained on and firmly held by the mounting members so that the molds can not rotate relative to the mounting members. Dental casting material can be poured into the molds and around the distal ends of the mounting members to form base stones in the molds. The mounting members are attached to connector members that extend from proximal ends of the mounting members.

Abstract: A dental articulator is claimed which comprises an upper frame, a lower frame, a positioning member for positioning the upper frame, and a clamp for securing the positioning member and fixing the upper frame in position. The upper frame includes a hinge such that a mounting portion of the frame can be moved through basic opening and closing mandibular movements. The mounting portions of the upper and lower frames are configured to accept for fixation upper and lower dental models respectively. The positioning member is coupled at one end to the upper frame for pivotal movement, such that an inclination of the upper frame relative to the lower frame can be effected. The positioning member is configured and dimensioned to position the upper frame in opposing relationship with the lower frame such that an articulation of upper and lower dental models can be effected.

Abstract: A method an apparatus for recording and reproducing the path of insertion of a cast on a dental surveyor uses an iterative method to enable rapid equalization of the height of three points on the cast by first rotating the table on which the cast is situated about a spindle supported by two mutually perpendicular pivotal adjustment arms so that a line connecting two of the points a,b is as close as possible to being parallel with a long axis of a generally horizontal one of the pivotal adjustment arms, pivoting the horizontal adjustment arm so that points a,b are at an equal height, pivoting the generally vertical adjustment arm so that point a and a third point c are at an equal height, readjusting the horizontal adjustment arm so that points a and b are again at an equal height, readjusting the vertical adjustment arm so that points a and c are again at an equal height, and so forth until all three points are at the same height.

Abstract: Dental articulator apparatus includes an articulator base, a post extending upwardly from the articulator base, and an upper articulator member movably mounted on the post. The apparatus incorporates upper and lower dental cast or mold supports which allow the molds to be snapped in place on the apparatus or readily removed therefrom. The apparatus also includes an incisal guide member support connected to the base and extending outwardly therefrom between the upper articulator member and the articulator base. The incisal guide member support has a number of incisal guide member support sides alternatively presented for engagement by an incisal guide member depending from the upper articulator member.

Abstract: The present disclosure relates to a method and an apparatus for recording and reproducing the path of insertion of a cast on surveyors. In the method, the accuracy and speed of recording the path of insertion is easily effected with the help of a scoring tool and an adjustable surveyor table on which a cast is secured and the spatial relationship of the cast with respect to the scoring tool can be easily adjusted, facilitating parallel line making on the cast in one aspect and the reorientation of the cast in another aspect.

Abstract: A dental model and articulator system comprises upper and lower dental casts that each receive a corresponding anchor in their respective vertical posterior faces. A generally rectangular articulator main body has a transverse horizontal hinge attachment on its top that connects to an upper arm and the anchor on the upper dental cast. A vertical pivot is provided in the bottom end of the articulator main body that connects to the anchor on the lower dental cast. The upper and lower anchors attach to their respective articulator parts with a stem-in-sleeve arrangement that allows independent lateral tilting of both the upper and lower dental casts for occlusal and masticatory registration and fixing with glue. The vertical pivot also attaches to the articulator main body with a stem-in-sleeve arrangement that allows further degrees of freedom for the occlusal and masticatory registration between the upper and lower dental casts and for fixing the registration with glue.

Abstract: A face bow for receiving and transferring a model jaw to a jaw articulator in the correct spacial orientation relative to a patient's skull and jaw hinge axis. The face bow has a curved transfer member for surrounding a patient's face and a guide column releasably secured to the transfer member for carrying an adjustable bite fork. The transfer member has an elongate, centering groove and the guide column has an adjusting projection which is perpendicular to the guide column for engagement in the centering groove.

Abstract: A dental articulator which is basic in construction and practical for use by dentists as a routine procedure in their general practices. The articulator includes a base platform for stabilizing the articulator in first and second positions on a work surface, a longitudinal support column attached to the base platform, upper and lower support arms connected to the support column, and may include quick-release couplings providing a firm, adjustable and quickly removable mount for stone teeth casts. The lower support arm pivots and the upper does not, to more accurately simulate human jaw movement.

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 specification discloses an articulator and associated method for assembling upper and lower dental models corresponding to the upper and lower sets of a patient's teeth in a desired occlusal relationship for simulation of occlusal and masticatory movements by application of a force to the dental models supported by the articulator. The articulator comprises a frame comprising resiliently deformable first and second frame sections pivotally connected together for pivotal movement about a pivot axis. Each of the frame sections includes an elongate channel, the channels being arranged such that pivotal movement of the frame sections about the pivot axis sweeps the length axes of the channels through arcs in a plane disposed substantially perpendicular to the pivot axis. Structure is provided for limiting pivotal movement of the frame sections beyond a closed position at which the length axes of the channels are disposed substantially coaxially.

Abstract: A dental articulation apparatus for creating a pinned model of a patient's mandibular and maxillary dental arches. The apparatus permits the simultaneous relation and construction of pinned, segmental models of the maxillary and mandibular dental arches and allows the model, die, and articulation to be accomplished in a single pouring. The articulator includes recessed maxillary and mandibular tray support members each containing a plurality of indexing holes into which indexing pins can be inserted. A negative dental impression is then filled with a casting material, or alternatively, the support members are filled with a casting material, and the support members and negative impression material are then joined together such that the indexing pins protrude through and into the casting material.

Abstract: An articulator for a dental model including a first link means having first and second ends; a second link means having first and second ends; a hinge connecting the first ends of the first and second links; and a pair of couplings; one connected to the second end of the first link and another connected to the second end of the second link. Each coupling includes a model connector having one end defining a first socket and an opposite end adapted for attachment to a dental model; an articulator connector including a ball portion partially received by the first socket and a stem portion connected to one of the second ends of the links; a second socket partially receiving the ball portion and defining an arcuately shaped aperture penetrated by the stem portion; and a retainer securing the model connector to the second socket.

Abstract: An improved method and apparatus for producing a dental prosthetic with a minimum of time and labor. The preferred embodiment of the invention compresses first and second trays which are hingedly secured to allow articulating movement of the trays with respect to each other. At least one of the trays is provided with a grid having a plurality of holes in a spaced pattern to receive pins for supporting the model. In operation, one of the trays is filled with plaster and the negative impression of the teeth is placed therein. The operator then closes the articulator temporarily to determine the optimum location of the pins with respect to the various teeth marks in the impression. The pins are then inserted into the appropriate holes in the opposing tray, with the pins being parallel to each other. The impression is then filled with plaster and the tray containing the pins is then closed to cause the individual pins to be inserted into the plaster at the predetermined locations.

Abstract: An articulator for a dental model consisting of two dental casts, includes two connecting members 16 for partial embedding in a settable material, a pair of connectors 14 and a hinge 12 consisting of two hinge elements 22. Each connecting member 16 forms one part of a spigot and socket joint and each pair of connectors 14 forms a second part of a spigot and socket joint. Each pair of connectors 14 has an interlocking formation for interlocking engagement with one of the hinge elements 22. The hinge elements 22 are pivotally linked and each has an interlocking formation complementary to the interlocking formations of the connectors 14.

Abstract: A lower jaw moving function readjusting apparatus, which includes: an upper and lower triangular shaped plate; a front receiving tray and two rear receiving trays fixedly mounted on the triangular shaped lower plate, a front scribing needle and two rear scribing needles, each of which has a lower end which is positioned in hardenable material located in each of the front and rear receiving trays. The needles are suspended from the upper support plate and the height of at least one of the needles is adjustable. The upper and lower springs are hinged together so as to be pivotably opened or closed and the upper springs and lower springs are secured, respectively, to the upper and lower support plates.

Abstract: The invention provides a locking device for the secure hinged connection between the ball 1 and the ball housing 2 of an articulator, in the case of which on the outer side of the ball housing 2, which faces the ball neck 3, a semi-circular ledge 4 is arranged whereas on the ball neck 3 an axially movable, lockable ring 5 is provided. On the side facing the ball, the ring 5 has a circular groove 6 into which the semi-circular ledge 4 fits in a spring-loaded manner during locking.

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: In a dental articulator having articulator arms which extend forwards in their working position, of which one is mounted in two swivel/sliding joints to pivot about a swivel axis extending at right angles to the vertical longitudinal centre plane, said joints being arranged on both sides of the vertical longitudinal centre plane as mirror-images and being each formed by an articular recess in an articular housing and a spherical head that engages through an opening in the articular recess, and the articular recess has a sagittal guide surface, a Bennett guide surface and a lateral guide surface, and associated with each swivel/sliding joint is a locking device with a locking element for locking the associated swivel/sliding joint in its 0-position (final biting position), and the locking element can be adjusted between a locking position and a releasing position allowing sliding movements in the associated swivel/sliding joint, a form-locking connection is provided between the locking element and the spherica

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 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 method and apparatus for determination of the jaw relation and for instrumental occlusion analysis, which permit a reliable diagnosis and treatment for the occlusion. For this purpose, a maxillary model and mandibular model from a patient are fixed in plaster independently of one another and anatomically correctly and are placed one upon the other in an instantaneous occlusal position. For the instantaneous occlusal position, the positioning of the articular cavities of the maxillary model relative to the hinge axis of the mandibular model is determined, and the maxillary model is then displaced three-dimensionally relative to the mandibular model, with symmetrical alignment of the articular cavities relative to the hinge axis. The resulting jaw relation is fixed for an analysis of the malocclusions.

Abstract: A dental articulator with its condyle joint being a single ball attached to the upper support member and being removable as well as rotatable through 360 degrees, with the ball being supported in a spring loaded cylinder, allowing the technician to position the upper support member in multiple positions without the need of locking screws. Also, the incisal guide pin is located behind the models to give an unobstructed work area and a unique retaining method is provided which leaves an imprint on the plaster mold so that the molds can only be replaced in one position.

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 device for establishing the articulated movement of a mandible of a jaw relative to a maxilla of a jaw comprising a lower part, an upper part positioned above the lower part and having two spaced apart condylar houses each including an outer vertical frame, a middle horizontal frame and an inner vertical frame, each for mounting a sheet or plate having a curvalinear edge surface representing movement of a mandible, and first and second condylar rods each adjustably mounted to the lower part and having an upper vertical rod portion and an upper horizontal rod portion.

Abstract: An articulator for dentistry comprises a base plate, an extension plate arranged at a distance from the base plate, a frame including two parallel columns and a traverse turnably supported between the columns at a distance from the base plate. The base plate and the extension plate forming mold supports. The frame has a frame opening. A pin-shaped connecting element fixes the mold supports on the frame and extends partially through the mold opening with a radial play so as to form an intermediate space between the pin-shaped connecting element and a wall of the frame opening, and a hardenable material fills the intermediate space.

Abstract: An articular support system for dental model sets includes a fixture having an upper portion carried by a lower base portion. The base portion has a base plate which connects with an inner support post. This post is formed with a vertically extending inner passageway. The upper portion includes an inner and outer plate connected by a releasable hinge. To use the system a base of a dental model of a person's upper teeth and lower teeth are each molded with front and rear indentations. Each model then fits into a bracket having spaced apart end walls. On an inner side of each end wall is a locking tab that fits into the respective model indentations. The lower teeth model bracket next is affixed to the fixture base plate with mastic. The upper model teeth then are placed in contact with the lower model teeth to reproduce the bit that occurs inthe person's mouth. Next, the upper portion inner plate is loosely positioned in the base portion post passageway.

Abstract: A dental articulator for use with a dental stone comprising; a lower jaw member and an upper jaw member mounted to the lower jaw member. One of said jaw members is provided with a pivot post and a key member and the other jaw member defines a apertre which fits around the pivot post and a key way which selectively receives the key member for positioning the jaw members in a selected fixed positional relationship. A plurality of slots are formed in each jaw member to give the jaw member flex in the vertical and lateral direction and serrations are formed in the end of each jaw member to prevent rotation out of the dental stone. A dowel holding rod with associated dowel pins mounted thereto is mounted to the ends of each jaw member for mounting in selective jaw casts in one embodiment of the invention.

Abstract: An articulator having an upper frame having an upper arm and a lower frame having a lower arm. A pivot is provided on the upper arm swingably supporting the upper frame on the lower frame. Adjusting mechanism is provided for adjusting the upper arm relative to the lower arm so that a casting supported on the upper arm can be rotated relative to the lower arm or tilted up and down, forward and laterally, as well as swinging the upper casting relative to the lower casting. The dental articulator simulates the operation of human jaws for use in the manufacture of false teeth. An upper frame representing the upper jaw is mounted to a lower frame by a pair of ball and socket joints which may be adjusted to approximate a specific patient's jaw hinge. The adjusting mechanism can include a computer controlled motor for adjusting the upper arm relative to the lower arm in accordance with X-ray data of a patient's jaw structure.

Abstract: A dental articulator principally having a posterior articulating assembly, an anterior incisal support assembly and a mold assembly. The posterior articulating assembly is characterized by a ball and socket joint and a pivot joint. The ball and socket joint has a socket member which is operably coupled to the pivot joint and a ball member which is operably coupled to a first teeth cast. The pivot joint has a pivot member operably coupled to a support member for joining the pivotal joint to a second teeth cast. The anterior incisal support assembly has an incisal pin operably joined to the first teeth cast and an incisal plate, which cooperates with the incisal pin, joined to the second teeth cast.

Abstract: An artificial denture-skull for dental teaching and practice purposes, consisting of the model of an upper jaw which is equipped with teeth and of the model of a lower jaw which is equipped with teeth, the lower jaw model being connected with the upper jaw model for pivotal movement through the intermediary of two jaw linkages which are arranged at respectively both sides of the jaw models, whereby the lower jaw model is presently equipped with an articulated ball belonging to the jaw linkages and which is guided within an articulating track arranged in an articulating box on the upper jaw model. For the most possible exact simulation of the human head, the denture-skull can also be provided with a cerebral skull portion, as well as with a pocket-shaped covering possessing an oral or mouth aperture, for the resultant formation of a complete phantom head.

Abstract: A universal articulator for prosthodontic use includes upper and lower frames with respective horizontal branches. The rear end of the upper frame has inclined wings with slots. The front end of the lower frame has an incisal tray that is inclined. An incisal pin extends from the incisal tray to the upper frame. Articulator pins extend from the lower frame into the upper frame slots. The articulator pins are in different length pairs and the incisal pins are of different lengths and the pins are substituted for accomplishing adjustable spacing between the horizontal branches of the upper and lower frames which are held parallel and horizontal. A dental plaster supporting dental plate is removably supportable on and removable from one or each of the branches by an attachment element easily removed. Alternatively, dental plaster supporting retaining pins extend across the frames.

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 a dental articulator for simulating movements of a mandible relative to an upper jaw, comprising an upper part (2, 4) adapted to carry an upper jaw model (7), a lower part (1) adapted to carry a lower jaw model (8), and a hinge (13, 13) connecting said upper and lower parts, the hinge defining an axis (A-B) extending substantially horizontally in a plane extending substantially perpendicularly to the upper and lower parts for articulating said upper part with respect to the lower part about the hinge axis: the invention provides two pins (18) displaceably mounted in a first laterally extending slot (22) in the upper part (4), the pins extending downwardly from the upper part and being adapted to be fixed in said first slot, a constraining bar (19) fixed to said lower part (1), the constraining bar having a constraining edge in front of said plane and facing rearwardly towards said hinge axis, and the constraining edge being engageable with said pins (18) and spaced from the axis a distance corresponding to

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: The invention provides an articulator for the dental art comprising an upper member articulated on condylar balls integral with a lower member, the balls being engaged in housings of the rear hub of the upper member. Two transverse rods, actuated by a control means engaging between the inner ends of the rods, are urged back towards the condylar balls and pass through the BENNETT wings. The control means comprises several different spacing zones for providing variable spacings between the rods which, either come into abutment against the balls to maintain the upper member in the centered position or they free the balls so as to allow an immediate lateral displacement.

Abstract: A dental articulator, having a spatially oriented mounting table permanently bonded to the one frame, allows for the positioning of mounting plates on the upper and lower frames of an articulator. The first mounting plate is oriented exactly the same on the same frame of each articulator. The mounting plate table, capable of orienting the second mounting plate within a range of positions, is fixed both vertically and horizontally by means of a special mounting block. Therefore, the mounting plate table being fixed, mounted dental casts on the mounting plates may be transferred from one articulator to the other without introduction of vertical or horizontal errors. As a result the relationship of the upper mounting plate to the hinge axis will be the same for each articulator. Additionally, the vertical and horizontal relationship of the lower mounting plate to the upper mounting plate will be the same.

Abstract: A dental articulator or apparatus is disclosed for testing the accuracy of dentures during occlusion. The articulator is designed to simulate the complex three-dimensional motion of a human jaw and includes a longitudinally-extending base, an upper denture carrier pivotally mounted above the base for movement in a vertical plane, and a lower denture carrier pivotally connected to the base by a bearing-and-slot arrangement that permits three-dimensional curvilinear movement of the lower carrier. By attaching dentures to the carriers and moving the dentures through various centric, eccentric, lateral and protrusive movements against one another, the articulator permits "high spots" on the occlusal surfaces of the dentures to be located so that the dentures can be accurately ground to a proper fitting.

Abstract: A dental articulator has a tooth supporting tray secured to a platform by a key and keyway wherein the sidewalls of the keyway are resiliently supported to permit yielding of the sidewalls to overcome any clogging by particulate matter which may be present in a place of use of the articulator. A set of legs upstanding from the tray maintains orientation of the tray relative to the platform.

Abstract: A dental articulator in which maxillary and mandibular frames have at opposite sides interengaged condylar elements to simulate the jaw movements of a dental patient whose maxillary and mandibular dental casts are mounted on the respective frames. The mandibular frame has condylar spheres slidably engaged between upper and lower parallel side walls of grooves in condylar guide elements angularly adjustable on opposite sides of the maxillary frame, the upper side walls of the grooves being transparent for visual observation of the orbital and rotational movements of the condylar spheres in the grooves during relative movements of the frames to simulate the jaw movements of the dental patient.

Abstract: The frames and guide blocks for a dental articulator are precisely machined in three dimensions to guarantee interchangeability with other frames and guide blocks and accuracy of articulator movement with respect to dental casts mounted thereon. Test blocks for checking accuracy of the articulator are provided. Also disclosed is a plate removeably mounted on the guide block having a curve thereon indicating the curvature of an opening in the guide block.