IMPROVEMENTS IN MAKING AND FITTING ARTIFICIAL TEETH AND IN APPARATUS THEREFOR to
Year: 1886

page_text: I JONATHAN HOOTON, of Kersal, near Manchester, in the County of Lancaster,
Dentist, do hereby declare the nature of said Invention for IMPROVEMENTS IN
MAKING AND FITTING ARTIFICIAL TEETH AND IN APPARATUS THEREFOR to be as
follows:-
My invention relates to the manufacture of artificial teeth and to fitting the
same to the mouth of the patient and the chief object of my Invention is to enable
a whole set or part of a set of artificial teeth to be made and fitted to the mouth
of a patient by one and the same process.
I'effect this in the following manner :-Having taken as usual an impression or
cast in wax of the gums of the patient, and from this prepared a plaster or other
cast in the ordinary or any convenient manner I then take a section of wax which
has been moulded in a mould hereinafter described and heat the cast so that by
pressing the moulded piece of wax to it an impression is taken on the wax and
while the latter is still hot I adjust or regulate the position of the wax to suit the
peculiarities of the patients mouth, such as the angle at which the teeth are set.
The finished wax cast thus obtained is replaced in metal or other mould, which is
an important part of the Invention. This mould is of suitable size and represents
a complete set of the teeth and gums of a human being, and the wax cast is placed
in the lower part between the sides of the mould. A separate piece preferably of
metal and provided with suitable openings is then placed upon the mould into
which plaster of Paris or other suitable substance is run through the openings in
the metal piece on to the wax cast so as to obtain a correct impression of the surface
of the patients gums. As soon as the plaster has set the metal piece with the
plaster cast adhering to it is removed, the mould is then opened, the wax removed,
and the mould oiled and again closed ready to receive the composition of which the
teeth are cast. The artificial teeth are then formed by placing a sufficient quantity
of this composition in the mould in a pasty or semi-liquid condition, the quantity
of the composition being regulated by the number of teeth required. In the lower
part of the mould there are a number of pinholes, one opposite each tooth and
metal pins are passed through all or some of these holes and project into the mould

page_text: and a small platinum or other tube is passed over the projecting part of each pin
previous to the composition being placed in the mould as above described so that
the platinum tubes are embedded in the composition. The metal piece with the
plaster cast still adhering to it is then placed upon the mould and secured to it by
set screws or otherwise in such manner that the plaster cast is pressed firmly down
upon the composition in the bottom part of the mould and the composition is then
moulded simultaneously into the form of a set of artificial gums and teeth exactly
fitting the mouth of the patient. The teeth may then be fixed and treated in the
ordinary manner and secured to the gold plate or other foundation.
If desired the mould may be divided by means of plates so that the teeth may
be cast in two or more pieces or sections.

page_text: Improvements in Making and Fitting Artificial Teeth and in
Apparatus therefor.
I JONATHAN HOOTON; of Kersal, near Manchester, in the County of Lancaster,
Dentist, do hereby declare the nature of said Invention for IMPROVEMENTS IN
MAKING AND FITTING ARTIFICIAL TEETH AND IN APPARATUS THEREFOR, and in
what manner the same is to be performed, to be particularly described and
ascertained in and by the following statement :-
*
My invention relates to the manufacture of artificial teeth and to. fitting the
same to the mouth of the patient and the chief object of my Invention is to enable
a whole set or part of a set of artificial teeth to be made and fitted to the mouth
of a patient by one and the same process.
And in order that my Invention may be fully understood and readily carried
into effect I will describe the accompanying Sheet of Drawings, reference being had
to the figures and letters marked thereon.
Having taken as usual an impression or cast in wax of the gums and palate of
the patient and from this prepared a plaster cast in the ordinary or any convenient
manner I prefer to take from this plaster cast a pure tin, zinc, or other suitable
metal cast a shown in side view Fig. 1 and plan Fig. 2. This metal cast a is then
secured on a plate or frame b by means of the thumb screws c or otherwise.
I then take a section or piece of wax d, shown in side view Fig. 3, plan Fig. 4,
and front view Fig. 5 which piece d has been moulded in the mould hereinafter
explained with reference to Figs. 7 to 11 and I heat the cast a so that by pressing
the moulded piece of wax d upon it the superfluous wax is melted down and an
impression of the patient's gums is obtained and while the wax is still hot I adjust
or regulate the position of the piece d by means of a guide consisting of a soft or
flexible metal or other strip & supported by two rods el free to slide horizontally
in a block f. When the position of the strip e has been adjusted by sliding the
rods e¹ the latter are fixed in position by means of a screw or screws g. The
block is supported by a standard 61 on which it may be adjusted vertically or
axially and then secured by a screw h.
By means of this guide I am enabled while the wax is melting to adjust or
regulate the position of the piece d to suit the peculiarities of the patient's
mouth, such as the angle at which the teeth are set, their length and the projection
of the gums.
The finished wax cast d, see Fig. 6, thus obtained is replaced in the mould
already mentioned as being illustrated by Figs. 7, 8, 9, 10 and 11.
This mould which constitutes an important part of the Invention, is of suitable
size and represents a complete set of the teeth and gums of one of the jaws of a
human being. The mould is made in three parts, namely, the body or main
portion i, the front, or side piece k and the top or cover m. The front portion k
is made in say, four parts which are hinged together for greater convenience in
opening and closing the mould and when closed the portion is secured in position
by two pins o. The cover m has holes or openings m¹ in it and is secured to the
body i by a screw and nut p.

page_text: The wax cast d having been placed in the lower part of the mould and the
mould closed by securing the piece k and the cover m I run plaster of paris, pure
tin, or other suitable substance n through the holes m' on to the wax d so as to
obtain a correct impression of the surface of the patients gums. As soon as the
plaster or other substance has set the cover m with the cast n adhering to it, see
Fig. 10, is removed, the mould is then opened the wax d' removed and the mould
oiled and the front part k again closed ready to receive the composition from which
the teeth are to be cast.
The artificial teeth are then formed by placing a sufficient quantity of this
composition in the mould in a pasty or semi-liquid condition, the quantity of the
composition being regulated by the number of teeth required.
In the lower part of the body i there are a number of pin holes shown in
dotted lines, Fig. 7, one opposite each tooth and metal pins are passed through all
or some of these holes ¹ and project into the mould. A small platinum or other
tube is passed over the projecting part of each pin previous to the composition
being placed in the mould as above described, so that the platinum tubes are
embedded in the composition. The cover m with the cast n still adhering to it, as
shown in Fig. 10, is then placed upon the body i and secured to it by the nut p in
such manner that the cast n is pressed firmly down upon the composition in the
bottom part of the mould and the composition is thus moulded simultaneously into
the form of a set of artificial gums and teeth, see Fig. 8, exactly fitting the mouth
of the patient and agreeing with the finished wax cast, see Fig. 6.
The teeth may then be fired and treated in the ordinary manner and secured to
the gold plate or other foundation.
If desired, the mould may be divided by means of plates or otherwise so that
the artificial teeth may be cast in two or more pieces or sections.
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. Making a whole set or a part of a set of artificial teeth or gums and teeth
and simultaneously fitting the same to the mouth of a patient by one and the same
process.
•
2. The process of simultaneously making and fitting artificial teeth or gums
and teeth substantially in the manner herein described with reference to the
Drawings annexed.
3. The use and application of a piece or section of wax or other suitable
substance d in combination with a cast such as a, substantially as and for the
purposes described.
4. The combination with the cast a and the piece d of the guide substantially
as and for the purposes described and as illustrated by Figs. 1 and 2.
5. The use and application of a mould in making and simultaneously fitting
artificial teeth or gums and teeth, substantially as berein shown and described.
6. The construction, combination, and arrangement of parts forming the mould
illustrated by Figs. 7 to 11, substantially as and for the purposes described.
Dated this 20th day of October 1886..