A Dental Anodyne or Local Anæsthetic.
Year: 1887

page_text: Date of Application, 18th May, 1887.
Complete Left, 15th July, 1887.
Complete Accepted, 2nd Sept., 1887.
[Communicated from abroad by CHARLES WILLIAM ARNOLD, of Orlando, Florida, in
the United States of America.]
A Dental Anodyne or Local Anæsthetic.
I, CHARLES THOMAS ARNOLD of No. 20 Whitehall Place London in the County
of Middlesex Solicitor do hereby declare the nature of this invention to be as
follows:-
.
This Invention relates to a new and improved Dental Anodyne or Local anesthetic
and it consists in a new composition of matter for dental purposes, the same being
mainly designed to be used for preventing or relieving pain in sensitive dentine during
the process of preparing the cavity of the tooth for the purpose of filling it, also as a
disenfectant and deoderizer for preventing septic action and lessening the liability to
trouble usually following a dental operation.
Furthermore if applied to the cavities of dead teeth, and the nerve canals be
thoroughly cleansed with the compound before filling the cavities, it will prevent the
formation of alveolar abscesses after they are filled by destroying the tendency to
generate gases in or at the root of the tooth.
The following ingredients, in or about the proportions specified, are used in the
preparation of my improved compound or composition.
Neutral mixture composed of acetic acid and carbonate of ammonia, one half ounce:
salicylic acid, eighty grains: bydro-chlorate of cocoaine, eight grains.
The following is the mode of preparation. To produce the neutral mixture I take
chemically pure acetic acid and add carbonate of ammonia until an exact neutral
mixture is obtained. To this mixture I then add the salicylic acid until thoroughly
saturated and filter the whole, and afterwards add and mix the filtered product of the
hydro-chlorate of cocoaine.

page_text: I do not restrict myself to the precise proportions here given for the ingredients, but
prefer to adopt those I have named.
The compound is to be applied in varied quantities, according to the requirements
in each particular case for any or all the purposes herein before specified. When used
for preventing or relieving the pain in sensitive dentine during the process of preparing
the cavity of the tooth for the purpose of filling it, the compound I have described will
so far relieve the sensitiveness of the dentine as that the dentist will be enabled to
prepare or complete the formation of the cavity and to fill the tooth at or during a
single sitting.

page_text: in the United States of America.
I, CHARLES THOMAS ARNOLD of No. 20 Whitehall Place, London in the County of
Middlesex, Solicitor do hereby declare the nature of this invention, and in what
manner the same is to be performed, to be particularly described and ascertained
in and by the following statement :—
This Invention relates to a new and improved Dental Anodyne or Local anesthetic
and it consists in a new composition of matter for dental purposes, the same being
mainly designed to be used for preventing or relieving pain in sensitive dentine during
the process of preparing the cavity of the tooth for the purpose of filling it, also as a
disinfectant and deodorizer for preventing septic action and lessening the liability to
trouble usually following a dental operation. Furthermore if applied to the cavities
of dead teeth and the nerve canals be thoroughly cleansed with the compound
before filling the cavities it will prevent the formation of alveolar abscess after
they are filled by destroying the tendency to generate gases in or at the root of
the tooth.
The following ingredients, in or about the proportions specified, are used in
the preparation of my improved compound or composition; neutral mixture
composed of acetic acid and carbonate of ammonia, one half ounce, salicylic acid,
Eighty grains.
Hydrochlorate of cocoaine, Eight grains. The following is the mode of preparation:―
to produce the neutral mixture I take chemically pure acetic acid and add carbonate
of ammonia until an exact neutral mixture is obtained. To this mixture I then
add the salicylic acid until thoroughly saturated and filter the whole, and afterwards
add and mix the filtered product of the hydrochlorate of cocoaine.
I do not restrict myself to the precise proportions here given for the ingredients, but
prefer to adopt those I have named.
The compound is to be applied in varied quantities, according to the requirements
in each particular case for any or all the purposes bereinbefore specified. When used
for preventing or relieving the pain in sensitive dentine during the process of
preparing the Cavity of the tooth for the purpose of filling it, the compound I have
here described will so far relieve the sensitiveness of the dentine as that the dentist
will be enabled to prepare or complete the formation of the cavity and to fill the tooth
at or during a single sitting.

page_text: I am aware that salicyctate of cocoaine has before been used. Such therefore I do
not claim.
Having now particularly described and ascertained the nature of my said invention
and in what manner the same is to be performed, as communicated to me by my
foreign correspondent, I declare that what I claim is :-
The herein described compound or composition of matter for dental purposes,
consisting of a neutral mixture of acetic acid and carbonate of ammonia (liquor
ammonia acetatis), Salicylic acid, and Hydrochlorate of cocoaine in or about the
proportions specified.