US 4,189,837 AGranted

Dental jaw simulator

OwnerAaron Steleinventor

Life of this patent

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Abstract

A dental jaw simulator is provided for duplicating human jaw movements and, in particular, the movement of the lower human jaw. The simulator includes a support frame and an upper jaw member pivotally mounted on the support frame and which is adapted to receive an upper dental arch cast. A lower jaw member is also mounted on the support frame and is adapted to receive a lower dental arch cast. Movement of the lower jaw member in protrusive and retrusive directions and in a lateral direction is controlled by a ball and slot hinge arrangement in combination with a movable anterior platform mounted on the support frame and a forward pin connected to the lower jaw member and which engages and is movable relative to the anterior platform. The anterior platform is provided with sloping planes on which the forward pin moves to guide the lower jaw member in order to duplicate the dropping of the lower human jaw during lateral movement.

Claims18

Dependent claims

A dental jaw simulator for duplicating human jaw movements, comprising:

a support frame,
an upper jaw member pivotally mounted on said support frame for receiving an upper dental arch cast,
a lower jaw member mounted on said support frame for receiving a lower dental arch cast, and
means for moving said lower jaw member in protrusive and retrusive directions and in a lateral direction including a universal hinge arrangement in combination with an anterior platform mounted on said support frame and a forward pin member connected to said lower jaw member which engages and is movable relative to said anterior platform,
said anterior platform including first and second sloping planes meeting at the center of said platform to form a crest and sloping downwardly from said crest to the edge of said platform, said forward pin member being movable on said first and second sloping planes to guide said lower jaw member to move downwardly and in a retrusive direction about said hinge arrangement so that as said lower jaw member is moved laterally, it drops downwardly and moves in an arc for duplicating the movements of the lower human jaw during lateral movement thereof.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application: 05/809,297Filed 23 Jun 1977
Granted: 26 Feb 1980
Term ends: Not estimatedThe source records don’t support an estimate.

Classification6 codes

A61C 11/022
Characterised by the arrangement, location or type of the hinge means ; Articulators with pivots: with two adjustable pivoting points, e.g.…
A61C 11/025
Characterised by the arrangement, location or type of the hinge means ; Articulators with pivots: with a pivotable lower part, i.e. mandibule…
A61C 11/06
Dental articulators, i.e. for simulating movement of the temporo-mandibular joints; Articulation forms or mouldings: with incisal guide
A61C 11/08
Dental articulators, i.e. for simulating movement of the temporo-mandibular joints; Articulation forms or mouldings: with means to secure dental…