Worcester daily spy. [volume] (Worcester [Mass.]) 1850-1888, 1852-09-15
Great Improvement IN
MECHANICAL DENTISTRY.
Y u y 4 II

- - ~ II Aa-
INSERTED upon a ne,c plan. invented and patented
by Dr. Allen, Professor in the Dental College of Gin.
cinnati, Ohio.
DR.. s.P.. MILLER.
(Sole Proprietor for Worcester County,
having subjected the above plan fnsertna Teeth to Sc
tests both and out the mouth and having sew
eral sets a and whole in actual service, which give
entire satisfaction, has adopted in his practice and ia
prepared to recommend to public confidence; the
from the unqualified expressions of preference, and
confident assurance Of superiority over block Teeth ON
gold plates, by persons who have tried both Pure pat
is used instead of gold the latter being pecessary
aoytd with silver and copper fuses readily for the
purpose Platinum is acted upon by the fluids of
the mouth consequently. is free from the metallic (ga
vanic taste often mpained of the use of fine guild
This method OF setting Teeth has been in operation in
this office for several months but public notice been
delayed to afford ample opportunity of comparing il
thoroughly with every other known and popular mode
ana ans not 10 excite pnDe expectations, without jus
ufabe basis. Its comparative advantages in the
strucon OF half whole sets, upon the atmospheric
pressure principle, win be demonstrated upon appIica
ton. Among them are the following, viz =
The gum is continuous, presenting in entire piece
without seam OF joint, most beautiful life-Ke appear
ance. They are worn with more ease, and retained
with greater rninesS, there beng varying Of the
plate in soldering, process which, invariably produ
ces more less sprIngng of gold plates. and in pro-
portion TO lis extent lmpairs The suction and often rem
ders an otherwise successful denture complete aure.
TheV more 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
less expense to the patient than ordinary block teeth
when broken BY accident
Persons prefenng block teeth however, gold plates
can have them, of superior quality, every respect
heretofore, Having superior facilities for the manufac
tuIe Of mineral teeth and specially for the gs style
of work, and
Experienced Assistant
in the different departments, applicants will be served
at short notice.
In regard to the Of platinum for dental purposes
Prof Chaee, Professor of Chemistry in Brown Univers
W, writes to Dr. Hawes and brother, of Providence
l., as follows:
a BRowN UNIVERSITY, April 10 1852
GENTLEMEN 10 your inquiry whether platinum
may be employed with safety health in dental opera
tons, have no hesitation in giving an affirmative an.
swer. Its one of the nattackable substances in
nature Although resembling silver in appearance ii
has twice the density of that METAL and differs remar-
kaby from in nearly all its physical and chemical prop
critics. Only two of the known acids-the Miro nuriat
c and the MISUNDERSTANDING any effect upon it.
both OF which dissolve gold with greater facjIty
Neither platinum nor gold when pure are at al acted
upon by the fluids of the mouth, and consequently can
exert no preudcia influence upon system when used
In the filling or fastening of teeth. AS the former how.
ever is found in commerce and the in an unadutera
ted state only while the latter is with allowed in
every proportion with the baser metals, the erpIoy
ment Of platinum may always be regarded as safer than
the of gold unless it has come immediately from
the hands Of the assayst. Yours, c.
GEO. l. CHACE, Professor of Chemistry
Messrs. A. @. Hawkes. & Brother
Office, l42 Main street residence No. Harvard ST.
Worcester, MAY 28th. 1852 dawistf