Worcester daily spy. [volume] (Worcester [Mass.]) 1850-1888, 1852-10-09

bv Dr. Allen, Professor ia the Dental College of Gin
sninu'' D S s.. 2. MILL Il n.
(sole Proprietor for Worcester CounfyO
having subjected the above plan OnseTtng Iees 70
eyere tests both in and out OF the mouth and having s
era sets alf and whole in actual service, which g
entire setisacton has adopted It In his practce anu Is
orensred to recommend public condolences me more
90 from the unqualified expressions of preference ana
confident of its superiority over Dock
gold plates by persons wig have tneo pom. luie Pill
aum is used instead of gold the latter being necessary
allowed with silver and copper, fuses too readily oI INC
purpose. Platinum is not acted upon by the hnus u
the mouth consequently, is free from the meac lgai
vanc taste so often complained of in the use oil hne sou
This method setting Teeth has been IN opeiatIpnln
this Office for several months but pOfc !otce naS peo
DELAYED afford ample opportunity oil company ~
thoroughty with every other known ana popular noue'
and also, excite public expectatoa without JUS
6abIe basis. It's comparative advantages IN inc con-
struction of half or whole sets, upon the atmospheric
pressure principle, will be demonstrated upon aPPii0u
ton Among them are the following, VIZ
The gum continuous, presenting In one ehte PoDo
without seam OF joint, most beautiful lIiehKe appear
arce. They worn with more ease anu leta.I I
with greater frnness, there beng no warping OF inc
Mate In soldering process which, invariably, prouu~
ces more or less sprInging of gold plaes ana III pro-
norton to Its extent impars the suction and often rem
ders an otherwise successful denture complete failure
They are easily Kept clean as by the fusion OF @
material to the teeth aud plate the hulds OF tne ~
and particles food entirely excluded from between
them Also are repaired with greater facility, and q
less expense the patient than ordinary blocK teelh
when broken by accident. ,,,.
can have Them OF superior quality, IN every respect as
heretofore Having hyperion facilities for the manulac
ture Of mineral teeth, and especially, for the ne styte
| of tuork and an
Experienced Assistant
in the different departments applicants will De served
at short notice.
In regard to the use platinum for dental purposes
Prof Chace Professor of Chemistry IN Brown UnlYesl
ty writes to DIR. Halves and brother OF providence, IL
l., as follows: ,,o 1880
.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
aver tits one of the most inatackabe substances u
nature Although resembling silver in appearance,
has twice the density OF that meta and diners femar
kablv it in nearly all its physical and chemical prop
critics. Only two OF the known aclds-the hlro'nuriat
ic and the nitro hydro -uorc-have any erect upon II
both of which dissolve gold with even greater facility
Neither platinum gold, when pare, are at all acet
upon by the fluids of the mouth, and consequently car
exert no preudcia influence upon the system when se'
in the filing or fastening of teeth AS the former, now
ever is found in commerce and the arts IN an uhtduefa
ted state only while the latter Is met with alioyed
every proportion with the baser metals, the employ
ment of platinum may always be regarded as SAFER tha
The use al gold, unless 1t has come Immediately iron
the hands Of the assayist Yours, q c.,
GEO 1. CHACE. Professor OF Chemistry
Messrs A. G. Hawkes. 4 Brother
Office I42 Main street residence NO harvard ST.
Worcester, May 28th. 1852. Hlsu