Improved device for retaining a set of artificial teeth in position by atmospheric pressure and method of making the same / [Carl Rauhe].

  • Rauhe, Carl.
Date:
1904
Catalogue details

Licence: Public Domain Mark

Credit: Improved device for retaining a set of artificial teeth in position by atmospheric pressure and method of making the same / [Carl Rauhe]. Source: Wellcome Collection.

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    N° 13,153 A#D*1904 Date of Application, 10th June, 1904—Accepted, 28th July, 1904 COMPLETE SPECIFICATION. Improved Device for Retaining a Set of Artificial Teeth in Position by Atmospheric Pressure and Method of Making the same. I, Carl Hauhe, of 4 Koenigsallee, Diisseldorf, Germany. Dentist, do hereby declare the nature of this invention, and in what manner the same is to be performed, to be particuarly described and ascertained in and by the following statement: — 5 My invention relates to an improved device for retaining a set of artificial teeth in position by atmospheric pressure and method of making the same. In similar devices, which are in use at present, there is produced by means of a matrix applied on the plaster cast model of the jaw in the manufacture of the india rubber plate a cavity between the roof of the mouth and the denture, the said 1C cavity acting either as a suction port itself or being filled by a soft india rubber disk secured to the set of teeth, by means of rivets or screws which materially increases the suction power. This india rubber dGk gets, however, spongy in the mouth and therefore must be replaced by a new one from time to time, a task requiring the service of a dentist because it is usually too difficult for the patient 15 to fix himself the rivet and plate or screw and plate fixtures. Another drawback is that the plate or rivet or screw being never specially fitted to accommodate itself to the shape of the jaw, often causes the feeling of a disagreeable pressure on the respective spot. The object of my invention is to remove the disadvantages set forth and the ;>0 device together with the tin matrix employed in my contrivance is illustrated in lire accompanying drawings by Figures 1, to 10. The said matrix consists of three parts ci, b, c, illustrated by Figs. 1, 2, 3, which is put together as shown by Fig. 4, and is pressed by means of a suitable tool to the spot of the gypsoplast of the jaw where it is intended to place the 2d suction device. Tin being a soft material will easily accomodate itself to the shape of the plaster cast, it may, however, be as well replaced by any other suit¬ able material. I now take apart the matrix and secure by means of pins or plugs d the part a to the plaster cast, to the shape of which it accommodates. Leaving the part c 30 aside, I now insert the part b again into the part a and fill the set of artificial teeth as usually with caoutchouc including the portion which has been occupied by the part e. After vulcanization I remove the matrix and there remains now on the side of the palate an annular recess e with a button or knob f in the centre corresponding to the shape of the said portion c. The removal of the said 35 matrix I accomplish by taking off the portion a and cutting through the part b. The latter may, however, be composed of several sup-parts which may be easily drawn out from under the india rubber button. I now draw the soft india rubber disk illustrated by Fig’s. 5, and 6, over the hard rubber button and substitute the disk by a new one. This operation may be easily performed by 40 the patient himself without requiring the aid of a dentist. The knob or button may also be made of gold or any other suitable metal in the shape of a disk with a small rod or plug (see Fig. 8); In this case the part c may be omitted from beginning and a button plate h with a small plug, may be inserted in the matrix so that a button is produced as shown in Fig. 10. The 45 knob of the india rubber button may be given any size by correspondingly ehansr- T Price Sd. j