US2884696A - Articulator for prosthetic dentistry - Google Patents

Articulator for prosthetic dentistry Download PDF

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US2884696A
US2884696A US502099A US50209955A US2884696A US 2884696 A US2884696 A US 2884696A US 502099 A US502099 A US 502099A US 50209955 A US50209955 A US 50209955A US 2884696 A US2884696 A US 2884696A
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prosthetic
articulator
bow member
members
mandibular
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Bonfanti Vittorio
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C11/00—Dental articulators, i.e. for simulating movement of the temporo-mandibular joints; Articulation forms or mouldings
    • A61C11/02—Dental articulators, i.e. for simulating movement of the temporo-mandibular joints; Articulation forms or mouldings characterised by the arrangement, location or type of the hinge means ; Articulators with pivots
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C11/00—Dental articulators, i.e. for simulating movement of the temporo-mandibular joints; Articulation forms or mouldings
    • A61C11/08—Dental articulators, i.e. for simulating movement of the temporo-mandibular joints; Articulation forms or mouldings with means to secure dental casts to articulator
    • A61C11/087—Dental articulators, i.e. for simulating movement of the temporo-mandibular joints; Articulation forms or mouldings with means to secure dental casts to articulator using magnets
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C11/00—Dental articulators, i.e. for simulating movement of the temporo-mandibular joints; Articulation forms or mouldings
    • A61C11/08—Dental articulators, i.e. for simulating movement of the temporo-mandibular joints; Articulation forms or mouldings with means to secure dental casts to articulator
    • A61C11/088—Dental articulators, i.e. for simulating movement of the temporo-mandibular joints; Articulation forms or mouldings with means to secure dental casts to articulator using screws

Definitions

  • This invention relates to articulators for prosthetic dentistry and, more particularly, it is related to a new and improved device of the type currently defined as articulators by those skilled in the art to which this invention appertains, and designed to support the models obtained from the impression of the patients oral cavity for construction, setting, adjusting and checking of prosthetic dentistry work, or dentures, partial or complete, upper or lower ones.
  • articulators have been devised to make possible and to improve the performance of such dental prosthetic Work.
  • Some of said articulators consist of plain hinge devices wherein the models are supported by upper and lower bow members relatively connected by means of a plain pivotal connection, the axis thereof is positioned in respect to said models to nearly correspond to the average axis of the temporo-mandibular articulations during the chewing movements or masticatory function of the dentures.
  • anatomic articulators comprise pin and-slot sliding and pivotal connecting means, or equivalent means designed for having the upper bow member movable with respect to the lower one either rotatably and slidably along a predetermined inclined plane, spatially positioned in respect to the models'and the dentures supported thereon to nearly correspond to the mandibular glide, or actual anatomic lateral and protusive movements of the mandible while the teeth remain in functional contact, and determined solely by the temporo-mandibular articulation and the occlusal or incisal surfaces of the teeth, and by the muscles and ligaments of said articulation, while the free movements of the mandible where there is no tooth contact correspond to the raising of said upper bow member about the axis of the hinge connecting means of the device.
  • the upper bow member is supported by a three-point bearing system, comprising two rear and laterally spaced bearing points formed, in general, by hinging means of the pinand-slot type, and a front bearing point formed by an incisal pin, ie by an adjustable rod member vertically arranged and having a lower end portion resting on an inclined plane.
  • the various articulators heretofore constructed are sub ject to several serious objections. But for the plain hinge articulators of cheap manufacture, which cannot produce prosthetic occlusions of the desirable accuracy, such devices are costly and rather complicated consisting of a great number of metallic parts.
  • the upper and lower bow members of said articulators are hingedly and removably interconnected by rather complex means comprising pivots, slotted members, spring means and releasing means, subject to wear and to damage by shocksand stresses. Full separation of said members requires some handling of the said releasing means and compression of spring means.
  • a more specific object of this invention is to provide a new and improved 'articulator for prosthetic dentistry comprising an upper bow member, a lower bow member and magnetic means connected to said members and adapted to magnetically and removably connect said members in their desired relative arrangement, for having the said members properly set and maintained in the occlusive relationship of the dentures supported thereby and for having same fully detached by simply applying a force by hand, directed to raise the upper bow member and enough for having said magnetic means spaced.
  • Another object of this invention is to provide an articulator as referred to above, wherein the said magnetic means are constructed in form of permanent magnets, connected to the said upper and lower bow members, having opposite fiat polar surfaces, adapted to be juxtaposed and to relatively contact in magnetic connection as the said bow members are relatively set in occlusive relationship, the surfaces being spatially arranged in the plane comprising the actual condylar path, so that the upper and lower bow members may be relatively moved along said plane, performing relative movements corresponding to the mandibular glide, while the magnetic means, sliding on the said contacting flat surfaces thereof, remain in magnetic connection and the prosthetic appliances teeth remm'n in functional contact, and so that the said how members may be kept, without any blocking, or looking or other operation, in any desired relative position comprised within the said condylar path.
  • a further object of this invention is to provide a new and improved articulator for prosthetic dentistry comprising an upper bow member, a lower bow member, and parts made integral with said members, having co-operating portions adapted to confine the relative movements of the said members, corresponding to the mandibular glide, within the anatomic limits of the condylar path, wherein the said portions are shaped and arranged as anatomic models, to represent the true temporo-mandibular articulation both in its construction in the skulls bones and in its operation during the said mandibular glide, which is confined by the skulls bones structure of the said temporo-mandibular articulations, ie by the limits of possible movements of the condyle in the glenoid fossa.
  • a still further object of this invention is to provide a new and improved articulator having an upper bow member, a lower bow member, means for detachably connecting said members in at least average occlusive condition of properly constructed prosthetic appliances supported thereby, and means for detachably connecting to said upper and to said lower bow members an upper and respectively a lower model adapted to shape and to support respectively the upper and the lower prosthetic appliance, wherein the said lower model may be substituted by an additive member, adapted to be removably connected to said lower bow member and provided with an up-facing flat surface, actuating an incisal table whereon the upper prosthetic appliances teeth may be initially aligned and set, the said fiat surface being in turn provided with longitudinal and transversal lines defining the sagittal centric line of the dental apparatus and respectively defining the fore point of the Bonwills triangle, the fore vertex of which is defined by the intercrossing of said lines and the rear vertexes of which correspond to the temporo-mandibular articulations.
  • a still further object of this invention is to provide a new and improved articulator for prosthetic dentistry, of the type referred to above, comprising upper and lower bow members connected with end portions shaped to effectively and operatively represent the glenoid fossa and respectively the condyle and the skulls bone portions near to the temporo-mandibular articulation, wherein each one of said members comprising the respectively shaped end portion is constructed in one shaped piece of plastic material, and preferably of transparent plastic material, like F.I. Plexiglas to allow for full observation of the prosthetic appliances under construction, adjustment and checking and of the relative position of the condyle in the co-operating glenoid fossa, in the various positions comprised in the mandibular glide.
  • Fig. 1 is a somewhat simplified perspective view of the said preferred form of embodiment of the invention, wherein the lower bow member of the articulator is provided with an incisal table;
  • Fig. 2 is an exploded side view of the various components of the articulator, of an upper model, of a lower model supporting a lower prosthetic appliance, like a complete lower denture, and of a wax record or impression of the upper oral cavity (said wax record being shown in vertical sectional view) adapted to be com pared with the said incisal table (diagrammatically shown in dot-and-dash lines).
  • Fig. 3 is side elevation of said incisal table additive member
  • Fig. 4 is a top view of the articulator, with part of its upper bow member broken away to show partly the lower bow member arranged thereunder;
  • Fig. 5 is a bottom view of the upper bow member of the articulator.
  • Fig. 6 is a vertical sectional view of the articulator arranged in occlusive condition, and taken along the line 66 of Fig. 4.
  • the articulator produced according the said preferred form of embodiment of the invention is provided with an upper bow member and with a lower bow member, the said members being indicated in general by numeral 10 and respectively by numeral 11.
  • the said upper member 10 consists mainly of a shaped block made from one piece of plastic, comprising a substantially flat principal portion 12, having a rounded fore end portion 13 and a wider straight rear side portion 14.
  • Said principal portion 12 is made integral with two curved and shaped extensions 15, rearwardly and sidewardly extended from the side end portions of said rear side 14 in symmetrical shape and arrangement, and having enlarged end portions 16 provided with downwardly facing shaped cavities 17 as shown in Figs. 5 and 6.
  • Said extensions comprising the shaped portions 15 and 16 are anatomically modelled to simulate the actual skulls bones comprising the glenoid fossa reproduced substantially in the true shape and arrangement thereof, while the said shaped cavities 17 are formed to accu rately reproduce said glenoid fossa, in its precise average shape, dimension and spatial arrangement in an average human skull, the upper edentation of which is represented by the upper prosthetic appliance set on the said upper member 10 below its principal portion 12, as fully explained below.
  • the principal substantially fiat portion 12 of upper member 10 is provided with a down-facing recess 18 (Figs. 5 and 6) wherein a correspondingly shaped dome portion 19 (Fig. 2) of an upper model 20 of the patients oral cavity may precisely fit and be firmly connected, for example by means of a screw 21 (Figs. 2, 4, 5 and 6) traversing the flat principal portion 12 and provided with a knurled knob forming an enlarged outer head 22, adapted for easy hand-drivingof said screw on into or oif said model 20.
  • the lower bow member 11 likewise mainly consists forming I of a one-piece block made of plastic and includes a principal substantially flat portion 30 substantially symmetrical to the principal portion 12 of the above de-.
  • Said principal portion 30 is made integral with two, symmetrical extensions 32, upwardly and side'- wardly extended from the rear corners of said portion 30, and having shaped upper end portions 33.
  • Said extensions 32 and the said upper end portions'33 thereof are anatomically modelled for reproducing in a true average shape, dimension and arrangement of the side rear portions of the actual osseous frame structure of an human mandible, wherein the condyle is reproduced by the said shaped upper end portions 33 in its precise shape and arrangement in the mandible, the lower edentationof which is represented by a lower prosthetic appliance, properly constructed and set on said lower member 11 above its said principal portionSG.
  • the said principal portion 30 is provided at its upper face with an up-facing recess 35 (Figs. 4 and 6), which is somewhat symmetrical in shape, arrangement and in its operation to the said recess 18'of upper member 10, and wherein a dome shaped bottom portion36 (Fig; 2) of a lower model 37 of the patients oral cavity, designed for shaping, adjusting and supporting an adapted lower prosthetic appliance 58, may precisely fit and be firmly connected to said lower bow member 11.
  • a screw 38 (Figs. 2 and 6) traversing said principal portion 39 and provided with a knurled knot forming an enlarged head 39 may be provided for having said model 37 detachably secured to said lower member 11 above its principal portion 30.
  • the articulator according to the invention is further provided with an additive member shown in Fig. 3 and, set on the articulator, in Figs. 1 and 6.
  • Said additive member comprises a base portion 40 having a dome shaped bottom end portion 41 shaped to precisely fit inside of'the said up-facing recess 35 of the lower bow member 11, as shown in Fig. 6.
  • the same screw 38 maybe used for having the said additive member detachably secured to the lower member 11 above the principal portion 30 thereof, in the manner above described, relating to securing of the lower model 37.
  • the additive member may be constructed of plastic material, for instance of plexiglass, and a metallic tubular member 42 (Fig. 6) with female screw thread may be cast into the plastic material to provide a screw connection with screw 38.
  • Said additive member comprises further a plate shaped upper portion 43, having an horizontal plain upper surface arranged to actuate the plane of occlusion, i.e. the average plane on which teeth of upper and of lower edentations, formed either by natural teeth or by prosthetic appliances, are set in occlusive correctly centric contacting relationship.
  • the upper portion. 43 of the described additive member of my articulator therefore actuates an incisal table on which the teeth of the upper prosthetic appliance may be properlyv set, while the teeth of the lower appliance may be successively set in proper position and alignment by comparing same to the previously set teeth of the upper appliance.
  • the provision of the incisal table in an articulator produced according to this invention may be advantageously used for adjustment of the upper model 20 with respect to the theoretical plane of occlusion, the effective position of which is strictly related to the position of the temporo-mandibular articulation.
  • the upper surface of plate portion 43 of the described additive member may be secured in one predetermined position with respect to the lower bow member 11 of the articulator, i.e. with respect to the portions 33 of the latter member, representing the condyle, said upper surface of portion 43 may be adapted to effectively represent the said theoretical plane ofocclusion.
  • a primary impression 45 made of wax, alginate or modeling compound may bev provided and adjusted to set the height, orvertical thickness of its material below the patients endentulous mucosa (which 6 isreproduced' by the shape oflbwerportibn of 'upper model 20) at the value corresponding to the desired spacing between the mucosa and the plane of occlusion, i.e. to the spacing that the prosthetic appliance must occupy.
  • the upper surface of plate portion 43 of the additive member is provided with a longitudinal line 44 (Fig. l) and with a transversal or cross line 46, neatly drawn on said surface, by engraving for example, and so positioned on said surface that the point at which the said lines 44 and 46 intersect correspond to the fore vertex of the Bonwills triangle, the rear vertexes of which are set on the condyles, actuated by the described upper end portions 33 of the lower bow member lls rear extensions 32, as above described.
  • FIG. 1 A study of Fig. 1, wherein a typical upper prosthetic appliance is shown in dashed lines and diagrammatically out-lined, will readily make apparent.
  • the application of the described additive member may advantageously be used for setting the appliance in the most desirable centric relationship with the anatomic features defined by the triangle of Bonwill, i.e. with the actual osseous frame structure of the maxilla, said proper setting of the upper appliance being in turn usefully exploited for accurately setting the teeth of the lower prosthetic appliance, if any, in proper functional contacting relationship with the upper teeth, in said plane of occlusion and in the same centric relationship with the triangle of Bonwill, i.e. with the actual osseous frame structure of the mandibular apparatus.
  • the upper bow member thereof is detachably connected to the lower one (and vice-versa) by magnetic means in and at any position admitted by the mandibular glide.
  • the said magnetic means consist of two permanent magnets, of for instance an aluminium-nickel-cobalt alloy, according to current knowledge of the art, oneof said magnets beingv connected to one bow member and the other one to the other bowmember of the articulator and arranged to remain in stable contacting relationship and in mag.- netic connection, as said two bow members are set in any relative position of, occlusive condition of prosthetic appliances supported thereby.
  • a rod-shaped permanent magnet 50 having a plain lower face 51 (Figs. 2, 5 and 6), is firmly secured to the upper member 10, and preferably partially embedded in the material forming the principal portion 12, near and parallel to the rear straight side 14 thereof.
  • a substantially similar rod-shaped other permanent magnet 52 having a plain upper face 53 (Figs. 2', 4 and 6) is likewise firmly secured to the lower member 11, and preferably partially embedded in a bridge portion 34 arranged between and made integral at its ends with the upper portions of said upraised extensions. 32.
  • the surfaces 51 and 53 of magnets and 52', respectively, are carefully levelled and made smooth for having any one of said magnets easily slidable on the other, when said magnets are in contact and magnetically connected.
  • the permanent magnets 52 and 50 are set and firmly connected to the said members 11 and 10 respectively, at such inclined arrangement that the plain, levelled and smooth surfaces 53 and 51, respectively, actuate both a portion of a plane at 30 with respect to the occlusion plane defined by the upper surface of the described additive member 40-43, when applied and secured to the lower member 11. Further, the said magnets are relatively positioned in relative polar opposition, so that they tend to contact and to mutually adhere on said surfaces, causing the said bow members 10 and 11 to be brought and kept in a mechanical-like connection, wherein the mechanical link is substituted by a magnetic link.
  • the permanent magnets 50 and 52 are selected with predetermined magnetic power enough for attaining a good connection of said members 10 and 11, but small enough to prevent damage of the articulator and of the prosthetic work supported thereby and to allow easy detachment of said members by spreading them apart by hand.
  • the magnets 50 and 52 are so positioned on the members 10 and 11, respectively, that as said magnets contact upon their faces 51 and 53, respectively, the condyle reproducing end portions 33 of member 11 seat within the glenoid fossa forming recesses 17 of member 10.
  • the magnetic connection of said members 10 and 11 therefore causes the portions 17 and 33 thereof to be relatively set to simulate the anatomic features of the human temporo-mandibular articulation.
  • the permanent magnets may be slidably moved relative to each other along their common plane of contact corresponding to the average plane of the mandibular glide, said members 10 and 11 may be relatively moved for reproducing by improvision the actual anatomic lateral and protusive movements of the mandible while the teeth remain in functional contact while the effectively reproduced features of the temporo-mandibular articulation (by end portion 33 in recess 17) confine the sagittal and lateral amplitude of said movements.
  • the two members 10 and 11 Due to the strict adherence of faces 51 and 53 of the magnets 50 and 52, respectively, by magnetic mutual attraction, the two members 10 and 11 are caused to be stable in any desired relative position comprised Within the mandibular glide, in which said members may be set.
  • Such feature may be advantageously used for careful checking of the proper occlusion at any one of anatomically possible positions, of the prosthetic appliance or appliances under work, while the operator is not troubled by the necessity of keeping the articulator in a determined position or required to operate blocking means.
  • the bow members may be fully detached and reset in their functional relative position and relatively secured therein by one simple operation of spacing or closing said members in the desired position, and further that I have provided a novel articulator by which the actual anatomi cal features and mode of operations of the temporomandibular articulation are completely and impressively made apparent in both their anatomical shape and arrangement and relation with the dental problems referring to occlusion.
  • additive wedge-shaped magnetic or non magnetic elements may vbe easily conceived and provided for insertion thereof between the opposite faces of the magnets to modify the average angle of inclination.
  • a set of such elements may be provided for adapting the articulator to operate according to any angle of a plurality of predetermined angles.
  • the typical and advantageous structural simplicity of the described new articulator is maintained if, where-desired, the said articulator would be provided with some additional moving parts to support the magnets and which provide for angular adjustment of said magnets ⁇ gith respect to the structure of the respective bow memers.
  • an articulator for prosthetic dentistry of the type including an upper bow mernrber adapted to sustain an upper dental model and an upper denture removably attached to said upper model, a lower bow member adapted to support a lower dental model and a lower denture rernovably attached to said lower model, and permanent magnet means for releasably and slidably connecting said upper bow member to said lower member in any desired occlusive position and for guiding said upper bow member above said lower bow member along a predetermined plane of condylar guidance wherein said dentures remain in functional contact, said magnet means including an upper permanent magnet connected to said upper bow member and having a lower polar plain smooth face situated on the plane and condylar guidance, of a lower permanent magnet connected to said lower bow member and having an upper polar smooth face situated on said plane of condylar guidance, for magnetic detachable and 9 slidable adherence to the. said lower polar face of said upper permanent magnet.
  • an articulator for prosthetic dentistry of the type including an upper bow member adapted to sustain an upper dental model and an upper denture removably attached to said upper model, a lower bow member adapted to support a lower dental model and a lower denture removably attached to said lower model, permanent magnet means for releasably and slidably connecting said upper bow member to said lower member in any desired occlusive position and for guiding said upper bow member above said lower member along a predetermined plane of condylar guidance wherein said dentures remain in functional contact within the limits determined by the temporo-mandibular articulation, said magnet means including an upper permanent magnet connected to said upper bow member and having a lower polar plain smooth face situated on said plane of condylar guidance, and a lower permanent magnet connected to said lower bow member and having an upper polar smooth face, situated on said plane of condylar guidance for magnetic detachable and slidable adherence to the said lower polar face of said upper permanent magnet; and means connected to
  • An articulator for prosthetic dentistry comprising, in combination: an upper bow member having an upper principal fore portion adapted to detachably sustain an upper dental model and an upper prosthetic appliance removably attached thereunder; a lower bow member having a lower principal fore portion adapted to detachably support a lower dental model and a lower prosthetic appliance removably attached thereto, said lower bow member movably supporting said upper member in a desired arrangement wherein the said upper and lower prosthetic appliances remain in occlusive dental functional contact within the positions determined by the plane of condylar guidance; an upper permanent magnet firmly connected to said upper bow member and having a plain and smooth polar lower surface parallel to said plane of condylar guidance; and a lower permanent magnet firmly connected to said lower bow member and having a plain and smooth polar upper surface parallel to said plane of condylar guidance for detachably and slidably adhering to said lower polar surface of said upper magnet as said members are set in said desired arrangement
  • An articulator for prosthetic dentistry of the fixed average anatomic type, comprising, in combination; an upper bow member adapted to sustain an upper dental model and an upper prosthetic appliance removably attached thereunder; a lower bow member adapted to support a lower dental model and a lower prosthetic appliance removably attached thereto, said lower bow member movably supporting said upper member in a desired arrangement wherein the said upper and lower prosthetic appliances remain in dental occlusive functional contact as determined by the anatomic features of the actual temporo-mandibular articulation; upper magnetic means connected to said upper bow member; lower magnetic means connected to said lower bow member for magnetic detachable and slidable adherence to and against said upper magnetic means as said members are set in said desired arrangement; and portions integral to said upper and to said lower bow members, shaped and positioned to reproduce in true average shape, dimension and relative position the actual osseous maxillar and respectively mandibular structure forming the temporo-mandibular articulation.
  • An articulator for prosthetic dentistry of the fixed average anatomic type, comprising, in combination;
  • upper bow member having an upper principal fore portion adapted to detachably sustain an upper dental model and an upper prosthetic appliance removably attached thereunder; a lower bow member having a lower principal fore portion adapted to detachably support a lower dental model and a lower prosthetic appliance removably attached thereto, said lower bow member movably supporting said upper member in a desired arrangement wherein the said upper and lower prosthetic appliances remain in dental functional contact within the limits determined by the anatomic features of the actual temporomandibular articulation and within the positions determined by the plane of condylar guidance actuated by said articulation; an upper permanent magnet firmly connected to said upper bow member and having a plain and smooth polar lower surface parallel to said plane of condylar guidance; a lower permanent magnet firmly connected to said lower bow member and having a plain and smooth polar upper surface parallel to said plane of condylar guidance for detachably and slidably adhering to said lower polar surface of said upper magnet as said members are set in said
  • An articulator for prosthetic dentistry comprising, in combination: an upper bow member adapted to sustain an upper dental model and an upper prosthetic appliance removably attached thereunder; a lower member adapted to support a lower dental model and a lower prosthetic appliance removably attached thereto, said lower bow member movably supporting said upper member in a desired arrangement wherein the said upper and lower prosthetic appliances remain in dental occlusive functional contact as determined by the anatomic features of the actual temporo-mandibular articulation; upper magnetic means connected to said upper bow member; lower magnetic means connected to said lower bow member, for magnetic detachable and slidable adherence to and against said upper magnetic means as said members are set in said desired arrangement; rearwardly extended symmetrical portions having recessed enlarged ends, integral with the said upper bow member and shaped for reproducing in actual average size and arrangement the side rear portions of the actual osseous maxillar structure comprising the glenoid fossa; upwardly extended symmetrical portions having shaped upper ends, integral with the said lower
  • An articulator for prosthetic dentistry comprising, in combination: an upper bow member adapted to detachably sustain an upper dental model and an upper prosthetic appliance removably attached thereunder; a lower bow member adapted to detachably support a lower dental model and a lower prosthetic appliance removably attached thereto, said lower bow member movably supporting said upper member in a desired arrangement wherein the said upper and lower prosthetic appliances remain in occlusive dental functional contact within the positions determined by the plane of condylar guidance; an upper permanent magnet connected to said upper bow member and having a polar lower surface parallel to said plane of condylar guidance; a lower permanent magnet connected to said lower bow member and having a polar upper surface parallel to said plane of condylar guidance for detachably and slidably adhering to said lower polar surfaceof said upper magnet as said members are set in said desired arrangement for having said members detachably connected by magnetic attraction while in said desired arrangement; rearwardly extended symmetrical portions having recessed enlarged ends, integral with
  • An articulator for prosthetic dentistry comprising, in combination: an upper bow member having an upper principal fore portion adapted to detachably sustain an upper dental model and an upper prosthetic appliance removably attached thereunder; a lower bow member having a lower principal fore portion adapted to detachably support a lower dental model and a lower prosthetic appliance removably attached thereto, said lower bow member movably supporting said upper member in a desired arrangement wherein the said upper and lower prosthetic appliances remain in dental functional contact within the limits determined by the anatomic features of the actual temporo-mandibular articulation and within the positions determined by the plane of condylar guidance actuated by said articulation; an upper permanent magnet firmly connected to said upper bow member and having a plain and smooth polar lower surface parallel to said plane of condylar guidance; a lower permanent magnet firmly connected to said lower bow member and having a plain and smooth polar upper surface parallel to said plane of condylar guidance for detach
  • An articulator for prosthetic dentistry including relatively movable upper and lower bow members designed to hold upper and respectively lower prosthetic appliances, and designed to reproduce the relative arrangement of tooth contact of upper and respectively of lower average natural dentitions supported by the natural osseous maxillary and respectively mandibular structures, as defined by the actual temporo-mandibular articulation comprising the glenoid fossa and respectively the condyle; wherein the said upper bow member is provided with two symmetrical rearwardly and sidewardly directed extensions having down-faced, recessed and enlarged end portions shaped for reproducing in actual average size and position the glenoid fossa and the neighbouring maxillary osseous structure; wherein the said lower bow member is provided with two symmetrical rearwardly and upwardly directed extensions having upper end portions shaped for reproducing in actual average size and position the condyle and the neighbouring mandibular osseous structure; wherein the said upper bow member is connected to a first permanent magnet having a lower polar face;
  • An articulator for prosthetic dentistry of the fixed average anatomic type and including relatively movable upper and lower bow members designed to hold upper and respectively lower prosthetic appliances, designed to reproduce the relative arrangement of tooth contact in an occlusion plane, and designed to reproduce the relative movements, due to the mandibular glide, of upper and respectively of lower average natural dentitions supported by the natural osseous maxillary and respectively mandibular structures, as defined by the actual condylar guidance due to the anatomic features of the temporo-mandibular articulation comprising the glenoid fossa and respectively the condyle;
  • the said upper bow member is formed by a single shaped piece of transparent plastic material, including a fore principal portion adapted to detachably sustain an upper appliance supporting dental model thereunder, and including two symmetrical rearwardly and sidewardly directed extensions having down-faced, recessed and enlarged end portions, and shaped to reproduce in average actual size'and position the glenoid fossa and the neighbouring max

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  • Oral & Maxillofacial Surgery (AREA)
  • Dentistry (AREA)
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  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
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US502099A 1954-04-22 1955-04-18 Articulator for prosthetic dentistry Expired - Lifetime US2884696A (en)

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3107429A (en) * 1956-12-29 1963-10-22 Korff Charlotte Grafin Von Articulator
US3221408A (en) * 1961-12-01 1965-12-07 Joseph V Scullin Dental model holder
US3646676A (en) * 1970-02-24 1972-03-07 John Pat Mitchell Magnetic dental appliances and methods for using same
US3653126A (en) * 1971-04-29 1972-04-04 Gorm P Hansen Dental articulator model mounting means
US3722099A (en) * 1971-02-22 1973-03-27 B Jankelson Method of accurately and precisely constructing artificial dentures
US4171570A (en) * 1977-10-27 1979-10-23 The Massachusetts General Hospital Method and apparatus for evaluating anomalies of facial bilateral symmetry
US4182039A (en) * 1975-10-31 1980-01-08 Giulio Preti Articulator with bite plate guides
US5348471A (en) * 1992-10-23 1994-09-20 Tetsuo Notomi Lower jaw moving function readjusting apparatus and position determination setting apparatus
US6082998A (en) * 1998-11-30 2000-07-04 Crosland; Larry Hand-held dental articulator
WO2006109247A2 (fr) * 2005-04-11 2006-10-19 Amann Girrbach Gmbh Articulateur
US20120207535A1 (en) * 2011-02-14 2012-08-16 Yasuhiko Kuwamura Articulator

Families Citing this family (4)

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US4449929A (en) * 1981-01-30 1984-05-22 Pfizer Inc. Denture alignment kit
AT381225B (de) * 1985-01-11 1986-09-10 Amann Dietmar Modelltraeger fuer artikulatoren
DE3911067A1 (de) * 1989-04-06 1990-10-11 Bayer Ag Artikulator
US5766007A (en) * 1995-06-06 1998-06-16 Dentsply Research & Development Corp. Vertically rigid dental articulator system and method

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US2555392A (en) * 1946-11-04 1951-06-05 Hyman Freedman Denture
US2678495A (en) * 1949-07-06 1954-05-18 Fine Louis Adrien Dental articulator

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US2555392A (en) * 1946-11-04 1951-06-05 Hyman Freedman Denture
US2678495A (en) * 1949-07-06 1954-05-18 Fine Louis Adrien Dental articulator

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3107429A (en) * 1956-12-29 1963-10-22 Korff Charlotte Grafin Von Articulator
US3221408A (en) * 1961-12-01 1965-12-07 Joseph V Scullin Dental model holder
US3646676A (en) * 1970-02-24 1972-03-07 John Pat Mitchell Magnetic dental appliances and methods for using same
US3722099A (en) * 1971-02-22 1973-03-27 B Jankelson Method of accurately and precisely constructing artificial dentures
US3653126A (en) * 1971-04-29 1972-04-04 Gorm P Hansen Dental articulator model mounting means
US4182039A (en) * 1975-10-31 1980-01-08 Giulio Preti Articulator with bite plate guides
US4171570A (en) * 1977-10-27 1979-10-23 The Massachusetts General Hospital Method and apparatus for evaluating anomalies of facial bilateral symmetry
US5348471A (en) * 1992-10-23 1994-09-20 Tetsuo Notomi Lower jaw moving function readjusting apparatus and position determination setting apparatus
US6082998A (en) * 1998-11-30 2000-07-04 Crosland; Larry Hand-held dental articulator
WO2006109247A2 (fr) * 2005-04-11 2006-10-19 Amann Girrbach Gmbh Articulateur
WO2006109247A3 (fr) * 2005-04-11 2007-03-08 Amann Girrbach Gmbh Articulateur
US20090220927A1 (en) * 2005-04-11 2009-09-03 Amann Girrbach Gmbh Articulator
US20120207535A1 (en) * 2011-02-14 2012-08-16 Yasuhiko Kuwamura Articulator
US9320578B2 (en) * 2011-02-14 2016-04-26 Nissin Dental Products Inc. Articulator

Also Published As

Publication number Publication date
FR1123062A (fr) 1956-09-17
DE1025564B (de) 1958-03-06

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