Improvements in Artificial Teeth.
Year: 1899

page_text: Date of Application, 3rd Nov., 1899-Accepted, 9th Dec., 1899
Improvements in Artificial Teeth.
I, FRANCESCO CASSULLO, of Via Della Piazza, No 12, Veiezzi, in the Province
of Genoa, Italy, Dentist, do hereby declare the nature of this invention and in
what manner the same is to be performed, to be particularly described and ascer-
tained in and by the following statement:-
This invention relates to the making of improved artificial teeth, its object
being to make them more solid, and their application much easier
The invention consists in providing the ai tificial tooth with grooves, in which
are set corresponding projections of a metallic plate, which coveis partially or
wholly the back side of the tooth; this metallic plate is also soldered or other-
wise fixed, by means of small pivots, plates. hooks on the like, upon the sets of
"fixed budge 01 "movable bridge" systems, or upon sets of teeth mounted on
metal or on caoutchouc or other plastic materials, oi also upon pivots introduced
into the natural roots
"
In the annexed drawings are shown as an example some forms and applications
of this invention.
Fig 1 is a view of the back side of a tooth.
Fig 2 is a side view of the same tooth.
Fig. 3 is a section on the line
of Fig. 1
Fig shows the side view of a metallic plate.
Fig. 5 shows the section of the same plate on the line y-y of Fig 4
Fig. 6 shows on a large scale the section of a tooth joined to the metallic
plate
Fig. 7 is the side view of the tooth joined to the metallic plate
Figs 8 and 9 show other forms of grooves and plates
Fig. 10 shows the frame of a tooth with pivot, to be introduced into the natural
100ts, while the tooth is being set
Fig 111s the application of the present invention to a molar tooth
Fig. 12 shows a metallic plate made like a hook specially adapted for sets of
teeth mounted in caoutchouc
Fig. 13 shows a curved metallic plate with small movable pivots applicable to
any tooth.
Fig. 14 shows the molar tooth to which may be applied the metallic plate
shown in Fig. 13
In the tooth A, of porcelain or other suitable material, are made in its back or
inner side one, two, or more grooves B, into which the projections of metallic
plates D may penetrate Grooves B and corresponding projections C may be of
any form, provided they comespond to the object of this invention, thus they
may be dovetailed (Figs 3 and 6), encula (Fig. 8), angular (Fig. 9), or of any
other coupling form Projections C upon plates D may be joined or soldered
(Figs. 5 and 6), or made by folding the edges (Fig. 9), or formed in any other
suitable way. Plates D are provided with small pivots F, blades F, movable
pins G, hooks H or other known means seiving for fixing, soldering or otherwise
applying them up bridges or other systems of sets of teeth.

page_text: After tooth A has been set on plate B, it is further joined by means of a suit-
able cement or glue, thus making plate and tooth a single body
The advantages of artificial teeth made according to this invention ale of great
importance with regard to solidity, facility of application and replacing of the
teeth for any system of metallic or plastic sets of teeth.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what
I claim is:—
1 An artificial tooth having one or more grooves in the back, in which ais
inserted coresponding projections of a metallic plate, which covers partially on
wholly the back of the tooth, and is capable of being soldered or otherwise
attached to the bridges, or plate of a set of teeth substantially as described
2 The improved construction of artificial teeth substantially as descubed and
illustrated
Dated the Bid day of November 1899
PHILIP M JUSTICE,
55 & 56, Chancery Lane, London,
Chartered Patent Agent, for the Applicant