Worcester daily spy. [volume] (Worcester [Mass.]) 1850-1888, 1852-07-12

(Sole Proprietor for Worcester County, -
having subjected the above plan ofinsertine Teeth to Sc
tests both IN and out of the mouth and having
era sets Gall and whole in actual service, which give
entire satisfaction has adopted in his practice and is
prepared recommend il public confidence; the more
So from the unqualified expressions of preference and
confident of its superiority block Teeth
gold Plates by persons who have tried both Pure pa
mum is used instead of gold the latter being necessarily
aoytd with silver and copper, fuses too readily for the
purpose. Platinum is not acted upon by the fluids of
the mouth consequently is free from the metallic (gal
vanic) taste often ompained of in the of fine gold
This method OF setting Teeth has been in operation in
this office several uonths but public notice has been
delayed TO afford ample opportunity of comparing it
Thoroughly with every other known aud popular mode,
and also not to excite public expectation, without JUS
tifiable basis Its comparative advantages in the
structon Of half or whole sets. upon the atmospheric
pressure principle will be demonstrated upon applica-
tion. Among them the loilOwing viz: -
The gum is con inuOus, presenting in entire piece
without seam OF joint, most beautiful iielke appear
ance. They are worn with more ease. and retained
with greater fTngneSs, here beng waIping of the
plate in soldering, process which, invariably produ
ces more or less sprngng ofgold plates. and in pro-
portion to It's extent npairs The suction and often
ders otherwise successful denture complete failure.
They easily kept clean, by the fusion of the
material to the teeth and plate the fluids of the mouth
and particles Of food entirely excluded from between
them. Also, repaired with greater facility, and at
less expense to the patient than ordinary block teeth,
WI en- broken by accident.
Persons preerrmg block teeth however on gold plates
can have Them OF superior qualitv IN every respect as
heretofore. Having uperiOr facilities for the manuiac
tuie of mineral teeth, and especially, for the style
Of a0ork, and a
Experienced Assistant
in the different departments, applicants will be served
at short notice. ta5 Ht
In regard to the of platinum for dental purposes
Prof Chace Professor of Chemistry in Brown UNIVERSE
ty, Dr. Halves and brother, of Providence R.
l., as iollOws
Brown UNIVERSITY, April 10, 1852.
GENTLEMEN To your inquiry whether platinum
may be employed with safety TO health in dental opera
tons, have no hesitation in giving an affirmative an
It's OF the most naitackable substances in
nature. Although resembling silver in appearance, it
has twice the density OF that metal and differs
kably om in neatly all its ysca and chemical prop
critics. Only two of the known acidsthe niro,muriat-
ic and the nitro any effect upon it,
both of which dissolve gold will greater facility
Neither platinum gold, when pure, all acted
upon by the fluids of the mouth, and consequently
exert preudici influence upon the system when used
III the filing fastening of teeth. As the former, how
is found in commerce and the arts III unaduera
only, while the latter is with alleged in
every proportion with the baser metals, the employ
ment of platinum may always be regarded safer than
the use of gold, unless it has come Immediately from
the hands OF the assayist Yours, c.,
GEO. l. CHACE, Professor of Chemistry.
Messrs. A. g. Hawkes. & Brother
Office, l42 Main street; residence No. Harvard st,
Worcester, May 28h, 1852. dawistf