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283 HISTORY OF DENTAL SUEGERY
had been unsuccessful. This central cavity seems to be a reservoir, as well
for atmospheric air as the elasticity of the gum. By examination of a num-
ber of cases which have been worn from four to seven months, no irritation of
the hard palate was observable, or unpleasant consequences in any respect.
Resolved, That a certificate of approval of the central cavity plate, should be
awarded Mr. Gilbert by this society. Signed
"J. D. White, M. D.
"S. T. Beale, M. D.
"Ely Parry, M. D."
At the next meeting of the society a communication from Mr. W. H. Gil-
bert, a confectioner of Hartford, Conn., was read, thanking the society for
tlie favorable report on his central cavity plate which he invented in 18-10.
The "Dental Reporter" says: "Dr. Taylor, from a committee, to whom
llie subject was referred, reported in favor of paying $401.30 legal expenses
incurred by Dr. Potter of Xorwalk, or Norwich, while defending a suit against
him by Gilbert of New Haven, Conn., for alleged infringement of his pat-
ent. Sometime since Gilbert patented a central cavity plate, and then he
endeavored to procure from dentists something for its use, and Dr. Potter
resisted the claim, having used the 'plate' several years ago. As the case
was that of the whole profession, the convention determined to take it up as
their own."
In the "Dental News Letter" for July, 1851, Dr. J. D. White says: "Gil-
bert's cavity plate is perhaps preferable to any with a cavity chamber or cham-
bers that are worth using."" Then follows an article on its advantages.
The "American Journal of Dental Science" says that the "elder Gardette
of Philadelphia, accidentally fell upon this plan of inserting complete sets of
teeth in 1800."
In a "Treatise on Dentistry" by B. T. Longbotham, of Baltimore, pub-
lished in 1803, he mentions having seen sets of teeth retained in the mouth by
atmospheric pressure.
Dr. C. A. Harris says that the "idea of constructing a plate with a cavity
susrgested itself to him in 183.5, but the chamber as then devised was found
objectionable and so abandoned."
Dr. W. H. Dwindle made a "cavity plate" with an external opening and
valve for exhausting the air in 184-5, and in 1847 Dr. Jahial Parmly made a
denture with a simple cavity struck into it by swaging.
Dr. Levatt's 'lateral cavities" are placed directly upon the alveolar ridge,
as were Dr. Flagg's, which were about one inch in length, by three-eighths in
width and one-tenth in depth.
283 HISTORY OF DENTAL SUEGERY
had been unsuccessful. This central cavity seems to be a reservoir, as well
for atmospheric air as the elasticity of the gum. By examination of a num-
ber of cases which have been worn from four to seven months, no irritation of
the hard palate was observable, or unpleasant consequences in any respect.
Resolved, That a certificate of approval of the central cavity plate, should be
awarded Mr. Gilbert by this society. Signed
"J. D. White, M. D.
"S. T. Beale, M. D.
"Ely Parry, M. D."
At the next meeting of the society a communication from Mr. W. H. Gil-
bert, a confectioner of Hartford, Conn., was read, thanking the society for
tlie favorable report on his central cavity plate which he invented in 18-10.
The "Dental Reporter" says: "Dr. Taylor, from a committee, to whom
llie subject was referred, reported in favor of paying $401.30 legal expenses
incurred by Dr. Potter of Xorwalk, or Norwich, while defending a suit against
him by Gilbert of New Haven, Conn., for alleged infringement of his pat-
ent. Sometime since Gilbert patented a central cavity plate, and then he
endeavored to procure from dentists something for its use, and Dr. Potter
resisted the claim, having used the 'plate' several years ago. As the case
was that of the whole profession, the convention determined to take it up as
their own."
In the "Dental News Letter" for July, 1851, Dr. J. D. White says: "Gil-
bert's cavity plate is perhaps preferable to any with a cavity chamber or cham-
bers that are worth using."" Then follows an article on its advantages.
The "American Journal of Dental Science" says that the "elder Gardette
of Philadelphia, accidentally fell upon this plan of inserting complete sets of
teeth in 1800."
In a "Treatise on Dentistry" by B. T. Longbotham, of Baltimore, pub-
lished in 1803, he mentions having seen sets of teeth retained in the mouth by
atmospheric pressure.
Dr. C. A. Harris says that the "idea of constructing a plate with a cavity
susrgested itself to him in 183.5, but the chamber as then devised was found
objectionable and so abandoned."
Dr. W. H. Dwindle made a "cavity plate" with an external opening and
valve for exhausting the air in 184-5, and in 1847 Dr. Jahial Parmly made a
denture with a simple cavity struck into it by swaging.
Dr. Levatt's 'lateral cavities" are placed directly upon the alveolar ridge,
as were Dr. Flagg's, which were about one inch in length, by three-eighths in
width and one-tenth in depth.
