Worcester daily spy. [volume] (Worcester [Mass.]) 1850-1888, 1852-11-06
(sole Proprletor for Worcester Countv

(Sole Proprietor for Worcester Couuty,)
having subjected The above plan Inserting Tech to
tests both in ant of the mouth and having
eral sets all and Wholly in actti service, which give
entire Satisfaction has adopted it in his practice and is
prepared TO recommt nd 10 public confidence; the
so, from the unqualified expressions Of preference, and
confident assurance superiority over block Teeth on
gold plates, bg persons who have tried both Pure pla
mum is used instead gold the latter being necessarily
aioyed with 81 yer and copper, fuses readily tor the
purpose, Platinum is acted upon by the fluids of
the mouth consequently is free from the netac (ga
yanc) taste often complained Of in the OF fine gold
This method 81 setting Tech has been in operation in
this office Tor several WOnths but plbjc notice has been
delayed 10 afford ample opportunity Of comparing il
thoroughly with every other known and popular mode
and Also not to excite public pectatioR, without JUS
hiiabe basis. It's comparative Advantages in the
srucion OF hell OF whole sets. upon the atmospheric
pressure principle, viii he demonstrated upon appca-
ton Among thom are the following, viz - 9t
The gun is continuous, presenting in one entire piece
without seam OF lolnt most heautiiu ite-Re appear
ahce' they are worn with more ease and retained
with greater frmRes9, there beng no warpng of the
plate in soldering, process Which, invariably, produ-
or less spriIlging ufgoh paies, and in pro-
portion to its extent inpars the suction and often
ders an otherwise successful dcnure complete failure
Thew are more easily Ee cteah as by the fusion OF the
material to the teeth aud plate the fluids of the mouth
and particles of food are entirely excluded from between
them. Also, repaired with greater facility, and a
Tess expense The patient than ordinary block teeth
when broken by accident.
Persons preferrg ock teeth however on gold plates
can have them, superior qnaiit IN every respect
heretofore Having ruperior facilities iof the ulanulac
SN''5
Of cork, and an
Experienced Assistant H,
in the different departments, applicants win be served
at short notice,
In regard the Of pttinupa for dental purposes
Prof Chace Professor of Chemistry in Brown Universi
ty, writes to DR. tlawes and brother, of Providence
L., as leows
Brown UNIVERSITY, ApIil 10 1859.
GENTLEMEN :-lo your inquiry whether platinum
may be employed with safety 10 health dtnta opera
tons have hesitation III giving an aHTnrIve an
swer Itis of the most naitackable substances IN
nature. Although resembling silver i'll appearance, il
has twice the density OF that metal and differs
kably om ii in neatly all its PHI steal and chemical prop
critics. Only Of the known actsthe nitro muriat
ic and the nitro hydrO-uoricha any effect upon it,
both of which dissolve gold with even greater facility
Neither platinum nor gold, when pure, at all acted
upon by the fluids of the mouth, and consequently
Observation-Disclosures upon the stem when used
in the filing fastening of teeth. As the former, how.
ever sfound in and the arts IN unadultera
ted state 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 has Immediately from
the hands OF the assayist Yours, &c,
GEO. /. CHACE, Professor of Chemistry
Messrs. A. e. Hawkes. Il Brother
Office l42 Main residence, 10. Harvard st,
Worcester MAY 2Sth. 1852. dawIstf