US85653A - Improved mode of inserting artificial teeth - Google Patents

Description

@that DVVARD B. GOODALL, QF PORTSMOUTH, NEW HAMPSHIRE.

'Leners Pamlvo. 85,653, daad January 5, 1869.

IMPROVIED MODE OF INSERTI'NG- ARTIFICIAL TIIETH.A

To all whom 'it Imay concern Be it known that 1, EDWARD B. GOODALL, of Ports.

mouth, in the county of Rockingham, and State of New Hampshire, have inventeda new and improved Mode of Constructing and Inserting Paitial or Whole Sets of Artificial Teeth, which I shall call Goodalls Elastic or Spring-Plate, and I do hereby declare that the following is a full, precise, and exact description thereof, reference being had to the accompanying drawings, in which-f- Figure 1 represents aview of the roof of the mouth, ora cast thereof, with the front teeth or incisors removed.

Figure 2 is a view of two articial front teeth, secured in or to a plate constructed in accordance with -my invention.

. Figure 3 is a view of the cast shown in iig. l, with the plate shown in fig. 2 inserted;

. The nature of my invention consists in making plates of an elastic or springy material, and of such shape or form that, While adapting itselfto the form of the mouth,

it will be held in its place when inserted in the mouth, by its elasticity, i. c., without clasps or suction, and this is accomplished by cutting away from plates, as ordinarily made of an elastic substance, the roof or upper part thereof, leaving wings or spring-like arms, or by forming the plate holding the artificial teeth of an elastic strip, fitting the sinuosities of the roof of the mouth, at or near that part of themouth which corresponds Vto the roots of the teeth, substantially as shown in the drawings.

' To enable others to make and use my said inven? tion, I shall now proceed to describe the manner in which the same is or may be carried into effect.

After obtaining the plaster-cast of the mouth, in the manner heretofore practised, I cut out from the portion of the plaster-cast which 'corresponds to the roof of the mouth, more. or less, according to the shape of the mouth, for the formation of win gs of requisite form and thickness or elasticity. Then, if rubber be Yused Afor the baseI take a pure and highly-elastic compound,

' and pack it in its plastic condition, as usual, and vul` canizeit until the plate becomes hard and elastic. By i heating-the plate so vulcanized, Ican shape it to obtain a greater or less degree of elasticityat pleasure. In connection with the elastic plate,such as described,

another improvement may be used, viz, a bevel-edge on the palatal surface of the plate of partial sets, and posterior surface of whole sets, which embeds itself into the mouth. The bevel-edge is made by cutting, with' a knife, the palatal surface of the cast about onesixteenth of an inch, more or less, according to the sponginess of the mouth, and by' then packing theI plate (if of rubber) as usual. y

I sometimes festoon the plate when packed, before vulcanizing to the cast and necks of the teeth, down near to the cast, so as to leave them projecting from the plaster the thickness'of the plate to be used,so that it will t exactly to the neck of each of the natural teeth, and be held inl position bythe elasticity of the plate, as aforesaid.

To .secure th'e plate in the mouth, it is only necessary to slightly compress it, by placing the thumb on onev arm or wing of the plate, and the fore-linger on the' other, and setting the plate in its proper place and releasing it. The plate will be thus securely and rmly", held, and none of the discomforts attending clasps will be felt, while nausea or impaired taste, or defective speech, or food working under the plate, which more or less attend the use of all otherplates, will be reffectually obviated. I

Ola-im.

Images