US1369509A - Artificial denture - Google Patents

Description

I. WEI NTRAUB,

ARTIFICIAL DENTURE.

APPLICATION FILED 0420.21, 1920.

1,369,509. Patented Feb. 22,1921.

PAT ENT OFFICE.

ISAAC WEINTIAUB, I)! NEW HAVEN, CONNECTICUT.

ARTIFICIAL nnn'ruma Specification of Letters Patent.

Application filed December 21, 1920. Serial No. 432,201.

To all whom it may concern Be it known that I, IsAAo WEINTR'AUB, a citizen of the United States, residing at New Haven, in the county of New Haven and'Stateof Connecticut, have invented a new and useful Improvement in Artificial Dentures; and I do hereby declare the following, when taken in connection with the accompanying drawings and the characters of reference marked thereon, to be a full, clear, and exact description of the same, and which said drawings constitute part of this application, and represent, in

' Figure 1, a perspective view of a backing for artificial teeth constructed in accordance with my invention.

Fig. 2, a rear view of a facing detached.

Fig. 3, a perspective view of a backing with a facing applied thereto.

Fig. 4, a transverse sectional view, showing my improvement, as applied between two permanent teeth.

Fig. 5, a perspective view of another form of backing, embodying my invention.

Fig. 6, a perspective view of the same, with a facing applied thereto.

This invention relates to an improvement 'in artificial denture, and particularly to that type which include a backing to which a porcelain crown, body, or veneer is attached.

n the more general practice, these backings are secured in place by connecting them with crowns, or caps, which are placed over the teeth adjacent .to the space which is to be filled.

The object of this invention is to so construct the metal back that it maybe connected with adjacent teeth without the use of caps, or similar devices, and the inven-' tion consists'in the construction as hereinafter described, and particularly recited in the claim.

In car ing out my invention I em loy a back 10, ormed on opposite sides wit ribs 11, and on its face with the usual projection 12, to which the porcelain face 13 is at; tached. In use, the teeth 14fand 15, on opposite sides of the space to be filled, are formed of vertical channels 16, to receive the ribs 11, which are preferably round. In this way the back is not only anchored in proper position, but the back forms-a firm connection betweenthe permanent teeth, so that, in effect, those teeth" are strengthened to bear the strain of the false tooth located between them. If desired, the ribs may be embedded in gutta-percha, or othersuitable material, in order to make a ermanent connection.

11 Figs. 5 and 6 of the drawings I have illustrated a back adapted for molars, these Patented Feb. 22,1921.

backs 17 being provided with ribs 18 on opposite sides, acting in the same manner as the ribs in the construction before described. It will, therefore, be understood that the form of the back may be varied accordin to the character of the facing to be applie but in every case will be provided on opposite sides with ribs.

Iclaim: I

1. An artificial tooth attachment consisting of a metal back, formed with a rib-on the edge of each side.

2. An. artificial tooth attachment consisting of a metal backing formed onopposite S1 e s with vertically arranged ribs. v 3. An artificial tooth attachment cornprising a metal backing, formed on opposite sides with vertically arranged ribs, and in one face with a projection combined with a facing adapted to engage with said projection.

In testimony whereof, I have signed this specification in the scribing witnesses.

, ISAAC .WE-INTRAUB.

Witnesses:

Fnnonnro O. EARLE, I P. M. F. EICHMANN.

presence, of two sub

Images