US2688800A - Dental articulator - Google Patents

Dental articulator Download PDF

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US2688800A
US2688800A US226197A US22619751A US2688800A US 2688800 A US2688800 A US 2688800A US 226197 A US226197 A US 226197A US 22619751 A US22619751 A US 22619751A US 2688800 A US2688800 A US 2688800A
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Prior art keywords
guide
edges
faces
pair
members
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Gerber Albert
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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
    • A61C11/022—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 with two adjustable pivoting points, e.g. Argon-type articulators
    • 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
    • A61C11/06—Dental articulators, i.e. for simulating movement of the temporo-mandibular joints; Articulation forms or mouldings with incisal guide
    • 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
    • A61C11/081—Dental articulators, i.e. for simulating movement of the temporo-mandibular joints; Articulation forms or mouldings with means to secure dental casts to articulator with adjusting means thereof
    • 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

  • the present invention relates to dental apparatus, and more particularly to dental articulators and the like.
  • Another object of this invention is to provide articulators capable of the full spectrum of tri-dimensional movements recognized to be within the capacity of movement of the human jaws, which are adaptable and adjustable according to the great variety-of individual requirements.
  • a still furtherobjectof the invention is to :provide articulators satisfying modern standards of scientific recognition which, at the same time, are sufiiciently simple as to readily lend themselves to manufacture at no excessive cost, and to facile and-economic operation.
  • Fig. 1 is a side View, in perspective, of one of the basic embodiments of the invention.
  • FIG. 2 and 3 are side views, partlyin section, of modifications of a detail shown .in Fig. 1;
  • Fig. 4 is a side view, in perspective, of another basic embodiment of the invention.
  • a guide member 8 mounted in the middle of the front portion of plate I is formed with downwardly converging guide faces 9 and ii ii, arranged V-fa-shion, the line of intersection H of these guide faces lying in a plane parallel to the plane determined by the edges 4- and 6. it screw .bolt i2, :nuts l3 associated with this belt, and a bore l4 and recesses Ma intended to receive a corresponding pin and corresponding lugs (not shown), respectively, all serve the purposeof mounting on the base plate -l, the lower portion of the artificial denture or denture model to .be worked on in the articulator.
  • Two hinge pins it are mounted for rotation in tubular bearings arranged at the rear edge of a movable upper plate it, longitudinal displacement of the pins i6 relative to the bearings being prevented by nuts I'i.
  • fhe ends [-8 and 19 of the pins 16 are rigidly fixed to guide members 28 and 2
  • These substantially Ushaped guide members are in inverted position on the edges 4 and 5, and 6 and l of the supporting members 2 and :3, respectively.
  • the guide member 20 is provided withiourrguide faces including a pair of outer guide faces 22 and 23, and a pair of inner guide faces r24 and25.
  • the guide mem- :26 and 21 anda pair of inner guide faces-28 and '29 are provided withiourrguide faces including a pair of outer guide faces 22 and 23, and a pair of inner guide faces r24 and25.
  • the guide f-acesof any onepair converge and intersect in a straight line.
  • guide faces 22 and 23 have a line of intersection 30
  • guide faces 24 and 25 have a line of intersection 3
  • guide faces 26 and 27 intersect in the line 32
  • , on the one hand, and the lines of intersection 32 and 33, on the other hand, are arranged at right angles relative to one another. These lines of intersection extend parallel to the edges on which they are supported in the position of rest of the device; thus, the line of intersection 3
  • the angle enclosed by the outer guide faces 22 and 23 should differ from that enclosed by the outer guide faces 26 and 21, for reasons which will become apparent as the specification proceeds.
  • are connected to the stationary portion of the articulator by means of tension springs only one of which, spring 34, is shown in the drawing as connecting the guide member 20 with the supporting member 2 forming part of the stationary portion of the articulator.
  • spring 34 is shown in the drawing as connecting the guide member 20 with the supporting member 2 forming part of the stationary portion of the articulator.
  • are held down on the supporting members 2 and 3 in such a manner that the lines of intersection 30, 3
  • Fig. 1 does not show this position of rest but shows a working position in which the guide members 20 and 2
  • a look screw 35 provided in the center of the front portion of the upper plate I5 permits to mount therein for vertical displacement, a somewhat pencil-shaped feeler member 35 the tapering end 31 of which is adapted to rest on the guide member 8.
  • a screw bolt 38 is mounted in the upper plate I5 and carries nuts and lock nuts (not shown in the drawing because they are hidden by the plate I5) corresponding to the nuts I3 provided on the bottom plate I.
  • This screw bolt and the nuts associated therewith as well as an aperture 39 adapted to receive a corresponding pin (not shown), are intended to support, underneath the plate I5, the uppe portion of an artificial denture or a denture model to be worked on in the articulator.
  • the upper and lower portions of an artificial denture or a denture model are mounted on the upper plate I5 and the base plate I, respectively so the upper and lower rows of teeth come to rest on one another the same as in the mouth. If it is remembered that it is the purpose of the articulator to cause the upper and lower portion of artificial dentures or denture models to perform the same movements relative to one another as they would when attached to the upper and lower jaws, respectively, during masticatory movements, it is apparent that a variety of movements can be imparted to the artificial dentures or denture models mounted in the articulator, as follows:
  • the sagittal movement is effected by forcing the upper plate I5 toward the rear in a direction perpendicular to the pins I6.
  • slide along the edges 4 and 6, respectively, with their lines of intersection 3
  • the guide member 8 must be so formed so that the intersection line II extends not parallel, but at an angle to the edges 4 and 6.
  • the intersection line II is more strongly inclined with respect to the base plate I than are the edges 4 and 6, the front of the upper plate I5 will rise when the plate I5 is moved toward the rear, i. e. looking at the plate I5 from the left in Fig. 1, it moves counter-clockwise with respect to the base plate I.
  • the upper plate I5 is subjected to a rotary displacement relative to base plate I.
  • the direction as well as the amount of this rotatory displacement can be predetermined by an appropriate choice of the respective angles.
  • the edges 5 and I, bearing on one of the front guide surfaces 22 and 23, and 26 and 21, respectively cause the upper plate I5 to shift rearwardly, this shift following a straight line if the angle formed by the faces 22 and 23 is the same as that formed by the faces 26 and 21.
  • the rearward movement is accompanied by a rotatory displacement of plate l5 around a vertical axis.
  • a proper choice of the angles formed by the several guide faces renders possible a helical movement of the upper plate I5, in addition to the lateral and vertical displacements thereof.
  • the upper plate is displaced either by a rearward movement of only one of the guide members 20 and 2
  • the lines of intersection- 3I' and 33' are subject to a rotatory displacement relative to the edges 4 and 6, respectively, with the result that the upper plate I executes an upward movement, a pivotal movement about the shafts I6, and a rotatory displacement about the point of contact of the guide member 2I and the supporting member 3, all at the same time.
  • edges: 4. and 5 instead of being ina straight line as shown in Fig. 1, are provided arcuated or curved and the lines of intersection 3
  • Two such modifi cations. are illustrated in Figs. 2'. and 3 wherein parts 2 and 2", respectively, replace the upper portion of the supporting member 2 of Fig. 1, and guide members 20 and 26', respectively, replace the guide member'2il of Fig. 1.
  • edges I and 6 extend at angles relative to the base plate I which are greater or' smaller than 45 in accordance with variations to be found in human jaw joints, and means may be provided for adjusting these angles.
  • Fig. 4 this is similar in many respects to the embodiment shown in Fig. 1 in that it includes a stationary base plate I which, in proximity of its rear edge, mounts two vertical supporting members 2 and each of which, at its top, is provided with a pair of edges 4 and 5, and 6 and I, the edges of each pair being arranged perpendicular to one another.
  • the edges 4" and 6' slant downwardly toward the front of the base plate I at an angle of approximately 45 relative to this plate.
  • the front portion of the plate I mounts a guide member 8 which has guide faces 9 and Ill slanted in the manner of the opposite sides of a V, the line of intersection II of these guide faces lying in a plane parallel to the plane determined by the edges 4 and 5, andfi. and 7 respectively.
  • a movable upper plate I5 at its rear edge, carries a shaft 48 which in turn mounts, at its two ends, the guide members 10 and II.
  • Each of these guide members has two truncated coneshaped portions 42 and 43, and 44 and 45, respectively, the two portions of each guide member being joinedat their narrower top portions so circular lines of intersection 46 and 41, respectively, result which in the position of rest of the articulator, rest on the edges 4 and 6, respectively, and also abut against the other pair of edges 5' and I, respectively.
  • FIG. 4 shows the guide members 40 and II spaced from 6. in Fig. 4, or else may all be different from one another, or may be equal only for each pair, dependent on the type of movements the: articulator shall be capable of.
  • a lock screw 35 provided in the front part of the upper plate I5 permits to adjustably mount therein forv vertical displacement, the pencilshaped feeler member 36 the tapering end 3 1 of which rests on the guide member 8.
  • a screw bolt 38- mounted in the upper plate I5 carries nuts and lock nuts (not shown: in the drawing because they are hidden by the plate I5) corresponding to the nuts I3 on the bottom plate I.
  • This screw bolt and the nuts asso ciated therewith, as well as an aperture 39 adapted to receive a corresponding pin (not shown), are intended to support, underneath the plate I5, as the upper portion of an artificial denture or denture model to be worked on in the articulator.
  • the upper and lower portions of an artificial denture or a denture model are mounted on the upper plate I5 and the base plate I, respectively, so the upper and lower rows of teeth come to rest on one another the same as in the mouth.
  • the particulator of Fig. 4 thus prepared, may perform a variety of movements, as folows:
  • the sagittal movement is effected by pushing the upper plate I5 toward the rear, at right angles to the shaft 48. During this movement the lines of intersection 45 and 41 remain on the edges 4 and 6 whereas the point 3'! at the end of feeler member 36 moves along the. line of intersection II. If the guide member 8' is provided so the intersection line II extends parallel to the edges 4 and 6', the plates I and I5 remain parallel to one another but the upper plate I5 is displaced rearwardly and upwardly in accordance with the angles of inclinationof the intersection line II and the edges 4 and 6, respectively.
  • the guide member 8 must be provided so that the line of intersection I I is not parallel to the edges 4 and 6, respectively.
  • the intersection line II is more inclined with respect to the base plate I than are the edges 4 and 6"
  • the front of the upper plate I5 rises when the plate is moved to the rear, i. e. looking at the plate I5 from the left in Fig. 4, it moves counterclockwise relative to the base plate I.
  • the direction and amount of this pivotal movement may be varied by using a variety of guide members 3 wherein the intersection line II is inclined at various different angles.
  • the transverse movement is effected by exerting pressure in the direction of the axle 38, on one of the guide members 40 and ll.
  • This causes not only a lateral movement of the plate I5 relative to the base plate I, but also an upward movement of the upper plate corresponding to the angles of the truncated cone portions and the inclination of the guide faces 9 and ID. If the angles formed by the conical surfaces of the truncated cone portions of each guide mem ber equal the angle formed by the line of intersection of a vertical plane with the guide faces 9 and I0, the plates I and I5 remain parallel and only the distance therebetween increases. If however, even only a part of these angles differ from the rest, the plate I5 is pivotally displaced with respect to the base plate I.
  • Direction and amount of this pivotal displacement may be predetermined by an appropriate choice of the various angles. Simultaneously, however, the edges and 1' bearing on the truncated cone-shaped guide members 40 and 4
  • only is pushed to the rear, or else both guide members are moved but over different distances. If, for example, the guide member only is moved to the rear, this guide member rotates about a center the location of which varies dependent on the point of contact of guide member 4
  • the lines of intersection 46 and 41 are subject to rotatory displacement relative to edges 4' and 6, with the result that the upper plate 15 simultaneously rises, pivots about a horizontal axis, and turns about a vertical axis.
  • edges 4' and 6 are curved or arcuated instead of straight.
  • This modification is shown in Fig. 5 wherein the top of a support 2"" includes edges 4" and 5" which, together, have about the shape of an S-curve, i. e. a shape approaching that of the human condyloid cavity.
  • the embodiment of the invention according to Fig. 4 may be modified further by making the angle formed by the edges 4 and 6' relative to the base plate I, greater or smaller than 45 corresponding to variations in the human jaw joints, and means may be provided for making this angle adjustable in accordance with prevailing requirements.
  • this includes a stationary base plate which rests on annular flanges 5
  • the base plate 50 in proximity of its rear edge, mounts two vertical supporting members 53 and 54 each of which, at its top, is provided with a pair of V-shaped edges 55 and 5 6, and 51 and 58, respectively, the edges of each pair being arranged perpendicular to one another.
  • the edges 55 and 51 slant toward the front of the base 56 at an angle of approximately 35.
  • the front portion of the base 56 mounts a guide member 56 having a flange 60 which surrounds, at the top and on the sides, a concave guide face 6
  • This guide face, on each side extends into contact with one of two planes which intersect at an angle of about 150, their line of intersection being disposed in a plane parallel to the planes formed by the edges 55 and 56, and 5'! and 58, respectively.
  • the screw 62 with its head 63 and the nut 64, provided in the base plate 56, serves the purpose of mounting the lower portion of an artificial denture or denture model, as does the somewhat triangular projection 65 which is adapted to engage a correspondingly shaped recess at the bottom of the denture or model to fix the portion of the same relative to the base plate 50.
  • Shanks 66 provided to the rear of an upper, movable plate 61 serve as bearings for two bolts 68 which terminate in heads 69 and screwthreaded portions 10, respectively.
  • the parts 10 are screwed into a lateral projection provided on the V-shaped guide supports H so as to be firmly connected therewith.
  • These guide supports mount for replacement, guide members 12; these guide members have screw-threaded bores 13 which are engaged by screws 14 having heads 15 and extending through center bores in the guide supports H.
  • the guide members 72 which are shown on a larger scale in Figs. 8 and 9, abut against the edges 55 and 56, and 51 and 58, respectively, on the supporting members 53 and 54.
  • Each guide member includes two guide faces, namely one guide face I6 extending forwardly and downwardly and abutting, for most conditions of operation, against the edges 56 and 58, respectively, and another guide face I1 extending rearward and downward and resting on the edges 55 and 51, respectively.
  • These guiding faces are cylindrical and concave, and each of them extends into contact with a pair of planes intersecting at angles a (Fig. 8) or b (Fig. 9), respectively, these angles exceeding 140.
  • Each has a curvature which diminishes from the base out (i. e.
  • each of the two guide faces 16 and 1'! is composed of two plane portions and a cylindrical, concave transition portion 18 and 19 which tangentially merges with the plane portions.
  • the transition portions 18 and 19 may have a constant radius of curvature.
  • the genetrices of the guide faces 16 and 11 form with one another, the same angles as the correlated pair of edges, this angle being 90 in the embodiment illustrated.
  • the pairs of edges 55 and 56, and 5'! and 58, respectively, are situated in parallel planes, and the genetrices of the guide faces of one guide member are also parallel to the corresponding genetrices of the guide faces of the other guide member.
  • the angle a does not have to be the same as the angle 1).
  • Pins and SI mounted at the bottom of one of the lateral projections on the guide supports 7!, and on one of the supporting members 53 and 54, respectively, support pull springs 82; these springs, as well as the weight of the movable parts of the articulator, in the position of rest illustrated in Figs. 6 and '7, cause the guide members 12, with the bases of their guide faces 16 and H, to be forced against the edges 55, 56, 51 and. 58, respectively.
  • the front portion of the movable upper plate 61 has a vertical bore 83 which mounts for vertical displacement, a pencil-shaped feeler member 84 which over a part of its length is flattened as indicated at 85.
  • a set screw 86 having a head 87 serves the purpose of fixing the position of the member 84 in the bore.
  • the point 88 is conical and with its rounded tip, rests on the guide face 6
  • the upper plate 61 has a triangularly shaped projecting portion 89 corresponding to portion 65 on the base plate 50 which, together with the screw 90 having a head 9
  • the articulator of Fig. 6 is :capable of the following movements:
  • the sagittal movement is eifected by pushing the upper plate 61 towards the rear, at right angles to the shafts 68.
  • the bases 79 of the two guide members '52 remain on the edges 55 and 57 during the entire movement, whereas the feeler member 84 moves with its point '83 along the base of the guide face 6!.
  • this guide face is shaped so that its base, which is formed by a narrow curved transition plane between two laterally and longitudinally inclined plane portions, extends parallel to the planes defined by the pairs of edges 55 and 56, and 51 and 58, respectively, the two plates 59 and 61 also remain parallel to one another, the upper plate 61 being displaced towards the rear and upwardly corresponding to the angle of inclination of the base of the guide face 6
  • the guide member 59 may be arranged for replacement on the base plate 50 so that, by a suitable selection of any one of a variety of guide members, the amount and direction of this turning movement may be predetermined. If desired, the guide member 59 might also be arranged to pivot about an axis extending parallel to the shafts 68 so the inclination of the guide face on guide member 59 could be adjusted in accordance with prevailing requirements.
  • the transverse movement is indicated by exerting pressure in the direction of the bolts 68, on one of the guide members 12.
  • This causes the upper plate 6? to be laterally displaced relative to the base plate 50, while simultaneously increasing its distance from the base plate 50 corresponding to the angles b of the guide faces Ti and the angle of inclination of the guide face '61. If these angles are equal, the plates 59 and 51 remain parallel so only the distance therebetween increases. If, however, there is any difference between any of these angles, the plate is pivotally displaced with respect to the base plate 58. Direction and amount of this pivotal displacement may be predetermined by an appropriate choice of the various angles.
  • the articulate-r according to Fig. 6 is capable of performing diagonal movements which are initiated by moving only one of the guide members 12 to the :rear, or moving both guide members to the rear but one over :a greater distance.than-theiother.
  • this guide member rotates about a center the location of which varies dependent on the point of contact of the other guide member 72 with the support 54.
  • the transition planes 19 of the two guide members are subject to rotary displacement relative to edges 5-5 and 51, with the result that the upper plate 5? simultaneously rises, pivots about a horizontal axis and turns about a vertical axis.
  • the embodiment of the invention illustrated in Figs. 6 to 12 differs from the embodiments illustrated in the preceding figures in that the guide faces are not formed merely by two intersecting plane portions, but ,thateven in the sim: plest case, a curved transition face is p ovided between two plane portions.
  • This feature is responsible for yielding, on the artificial dentures or denture models, masticatorysurfaces the sec tion of which is no longer jagged but is more or less sinus-shaped.
  • this serves to further increase the capacity of movement or mobility, i. e. the sum total of all possible move.- ments of the lower jaw on a free course of articulation.
  • the formation of the guide face "i1 is of somewhatgreater importance than that of the guide face '16, and that in most cases the ciu'ved transition portion 118 extends over a very narrow part of the .guide member only.
  • Figs. 10, 11 and 12 illustrate various guide members which may be substituted for the guide member 72 shown in Figs. 6 to 9, inclusive.
  • the various guide members shown in these figures show variants of the very important guide face 11 all of which are cylindrical and concave, extend into contact with a pair of planes intersecting at an angle exceeding and over at least the greater part of their width have a curvature which diminishes from the base out.
  • Fig. 10 shows a guide member 93 the guide face on which, in section, has hyperbolic shape.
  • This guide face is symmetric relative to a plane the same as guide face "H referred to above. It is completely curved and on its lateral edges extends into contact with a pair of planes which intersect at an angle 0 which exceeds 120.
  • the guide face 96 of the guide member '95 corresponds to the parabolic segment, the symmetry referred to above with reference to guide face M, however, being no longer maintained.
  • the guide face 36 with its sides, extendsinto contact with ,two planes which intersect at ,an angle d whichagain exceeds 120.
  • the guide member J97 has .a guide face 88 the section of which represents a line which is not readily determinable mathematically. However, it answers the-requirements enumerated :above insofar as the radiusof curva ture increases from the base out to both sides into proximity of two lateral fianges 9.9 where the tangents intersect at an angle ;a exceeding 120, the transition portion 100, of courSaha-Ving a very small radius of curvature.
  • a dental articulator comprising in combination, a stationary supporting member, a movable supporting member, two pairs of guiding edges associated with said stationary member and having the edges of each pair arranged at an angle to one another, two guide members each including four guide faces, associated with said movable member, the guide faces of each guide member being arranged in pairs, each of said pairs being adapted to be supported by one of said guiding edges, the guide faces of each pair being disposed V-fashion and intersecting in a straight line, the lines of intersection of two adjacent pairs of guide faces intersecting in a point.
  • a dental articulator comprising in combination, a stationary supporting member, a movable supporting member, two pairs of guiding edges associated with said stationary member and having the edges of each pair arranged at an angle to one another, two guide members each including four guide faces, associated with said movable member, the guide faces of each member being arranged in pairs, each of said pairs being arranged to be supported by one of said guiding edges, the guide faces of each pair being disposed V-fashion and intersecting in a straight line, the lines of intersection of two adjacent pairs of guide faces being arranged perpendicular to one another and intersecting in a point.
  • a dental articulator comprising in combination, a stationary supporting member, a movable supporting member, two pairs of guiding edges on said stationary member and having the edges of each pair arranged at an angle to one another,
  • edges extending along an are which is concentric relative to the intersection line of the pair of guide faces correlated with said guiding edge.
  • a dental articulator comprising in combination, a stationary supporting member, a movable supporting member, two pairs of guiding edges associated with said stationary member and having the edges of each pair arranged at an angle to one another, two guide members each including four guide faces, associated with said movable member, the guide faces of each guide member being arranged in pairs, each of said pairs being adapted to be supported by one of said guiding edges, the guide faces of each pair being disposed V-fashion, said movable supporting member being mounted for rotary displacement, on said guide members.
  • a dental articulator comprising in combination, a stationary supporting member, a movable supporting member, two pairs of guiding edges associated with said stationary member and having the edges of each pair arranged at an angle to one another, two guide members each including two truncated cone-shaped guide faces, associated with said movable member, each pair of edges controlling the position of one of said guide members whereby to influence the relative displacement of said supporting members, the opening angles of the two truncated cone portions which form part of the same guide member being equal.
  • a dental articulator comprising in combination, a stationary supporting member, a movable supporting member, two pairs of guiding edges on said stationary member and having the edges of each pair arranged at an angle to one another, two guide members each including two truncated cone-shaped guide faces, associated with said movable member, each pair of edges controlling the positions of one of said guide members whereby to influence the relative displacement of said supporting members, the opening angles of the two truncated cone portions which form part of the same guide member being different from one another.
  • a dental articulator comprising in combination, a stationary supporting member, a movable supporting member, two pairs of guiding edges associated with said stationary member and having the edges of each pair arranged at an angle to one another, two guide members each including two truncated cone-shaped guide faces, associated with said movable member, each pair of edges controlling the position of one of said guide members whereby to influence the relative displacement of said supporting members, the opening angles of the two truncated cone portions which form part of the same guide member being equal, the angles between the cones of one guide member, however, being different from the angles between the cones of the other guide member.
  • a dental articulator comprising in combination, a stationary supporting member, a movable supporting member, two pairs of guiding edges on said stationary member and having the edges of each pair arranged at an angle to one another, two guide members each including two truncated cone-shaped guide faces, associated with said movable member, each pair of edges controlling the position of one of said guide members whereby to influence the relative displacement of said supporting members, all the opening angles of the four truncated cone portions which form part of the two guide members, being different from one another.
  • a dental articulator comprising in combination, a stationary supporting member, a movable supporting member, two S-shaped guiding edges each comprising portions disposed substantially perpendicular to one another, associated with said stationary member, two guide members each having at least two guide faces, associated with said movable supporting member and arranged for displacement with respect to said guiding edges whereby to control the relative displacement of said supporting members.
  • a dental articulator comprising in combination, a stationary supporting member, a movable supporting member, two S-shaped guiding edges each comprising portions disposed substantially perpendicular to one another, associated with said stationary member, two guide members each including two truncated cone-shaped guide faces, associated with said movable supporting member and arranged for displacement with respect to 13 said guiding edges whereby to control the rela tive displacement of said supporting members.
  • a dental articulator comprising in combination, a stationary supporting member, a movable supporting member, two pairs of guiding edges on said stationary member and having the edges of each pair arranged at an angle to one another, two guide members each including two guide faces, associated with said movable member, each pair of guiding edges controlling the position of one of said guide faces whereby to influence the relative displacement of said supporting members, each guide face being cylindrical and concave, extending into contact with a pair of planes intersecting at an angle exceeding 120, and for at least the greater part of its width, having a curvature decreasing from the base on.
  • a dental articulator comprising in combination, a stationary supporting member, a movable supporting member, two pairs of guiding edges associated with said stationary member and having the edges of each pair arranged at an angle to one another, two guide members each including two guide faces, associated with said movable member, each pair of guiding edges controlling the position of one of said guide faces whereby to influence the relative displacement of said supporting members, each guide face being cylindrical and concave, extending into contact with a pair of planes intersecting at an angle exceeding 120, and for at least the greater part of its width, having a curvature decreasing from the base on, at least one of the guide faces on each guide member being formed by two plane portions with a cylindrically curved transition portion arranged therebetween.
  • a dental articulator comprising in combination, a stationary support member, two substantially vertical supports associated with said stationary support and arranged in spaced juxtaposition, said two vertical supports having a pair of downwardly converging edges formed on top of each support, a pair of guide members formed with faces extending at an angle to each other riding on the said edges of each of said two supports, a movable support member hingedly supported in substantially horizontal position by and between said guide members, a third guide member arranged below said movable support member and associated with said stationary support member, said third guide member being formed with a pair of downwardly converging faces, and a feeler member susppended from said support member above said third guide member.
  • each one of the guide members designed to ride on the top edges of the supports is formed with a pair of outer and a pair of inner guide faces, the guide faces of any one pair converging and intersecting in a straight line and their lines of intersection extending at an angle near relative to each other.
US226197A 1950-01-18 1951-05-14 Dental articulator Expired - Lifetime US2688800A (en)

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US226197A Expired - Lifetime US2688800A (en) 1950-01-18 1951-05-14 Dental articulator

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US (1) US2688800A (de)
CH (4) CH296175A (de)
DE (4) DE845236C (de)
FR (1) FR1045746A (de)
GB (1) GB691999A (de)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2909837A (en) * 1956-05-31 1959-10-27 Gerber Albert Articulator
US3027642A (en) * 1957-02-07 1962-04-03 Tersa A G Fa Artificial tooth
US3107429A (en) * 1956-12-29 1963-10-22 Korff Charlotte Grafin Von Articulator
US3772788A (en) * 1971-10-21 1973-11-20 A Gerber Articulator for constructing artificial teeth
US4035916A (en) * 1974-05-15 1977-07-19 Eveland Melborne D Dental apparatus
US5205737A (en) * 1988-11-17 1993-04-27 The University Of Sheffield Articulators for use in constructing artificial teeth
US5366373A (en) * 1993-12-10 1994-11-22 Frank Mumolo Dental articulator
US20050282105A1 (en) * 2004-06-16 2005-12-22 Lars Callne Dental articulator
US20060188838A1 (en) * 2005-02-24 2006-08-24 Lars Callne Dental articulator
US20090220927A1 (en) * 2005-04-11 2009-09-03 Amann Girrbach Gmbh Articulator

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1096543B (de) * 1957-02-07 1961-01-05 Intercolor A G Kuenstlicher Backenzahn sowie Verfahren und Vorrichtung zu seiner Herstellung
AT381225B (de) * 1985-01-11 1986-09-10 Amann Dietmar Modelltraeger fuer artikulatoren
DE4211006C2 (de) * 1992-04-02 1996-02-01 Kaltenbach & Voigt Zahnärztlicher Artikulator
EP1967159A1 (de) * 2007-03-09 2008-09-10 Franz Sachs GmbH & Co. KG Artikulator

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1319737A (en) * 1919-10-28 Dental device and method of denttyse constbuction
US1639626A (en) * 1925-09-04 1927-08-16 William R Badger Dental articulator

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1319737A (en) * 1919-10-28 Dental device and method of denttyse constbuction
US1639626A (en) * 1925-09-04 1927-08-16 William R Badger Dental articulator

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2909837A (en) * 1956-05-31 1959-10-27 Gerber Albert Articulator
US3107429A (en) * 1956-12-29 1963-10-22 Korff Charlotte Grafin Von Articulator
US3027642A (en) * 1957-02-07 1962-04-03 Tersa A G Fa Artificial tooth
US3772788A (en) * 1971-10-21 1973-11-20 A Gerber Articulator for constructing artificial teeth
US4035916A (en) * 1974-05-15 1977-07-19 Eveland Melborne D Dental apparatus
US5205737A (en) * 1988-11-17 1993-04-27 The University Of Sheffield Articulators for use in constructing artificial teeth
US5366373A (en) * 1993-12-10 1994-11-22 Frank Mumolo Dental articulator
US20050282105A1 (en) * 2004-06-16 2005-12-22 Lars Callne Dental articulator
US7083410B2 (en) 2004-06-16 2006-08-01 Vident Dental articulator
US20060188838A1 (en) * 2005-02-24 2006-08-24 Lars Callne Dental articulator
US7112061B2 (en) 2005-02-24 2006-09-26 Lars Callne Dental articulator
US20090220927A1 (en) * 2005-04-11 2009-09-03 Amann Girrbach Gmbh Articulator

Also Published As

Publication number Publication date
CH303929A (de) 1954-12-15
DE845236C (de) 1952-07-31
DE856939C (de) 1952-11-24
FR1045746A (fr) 1953-12-01
GB691999A (en) 1953-05-27
DE866538C (de) 1953-02-09
CH300818A (de) 1954-08-15
CH303164A (de) 1954-11-15
DE904101C (de) 1954-02-15
CH296175A (de) 1954-01-31

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