Worcester daily spy. [volume] (Worcester [Mass.]) 1850-1888, 1852-06-29
(soe Proprietor for Worcester County,

Dr. 3 2. M Z L il 4 Il
(Sole Proprietor for Worcester County,)
having subjected The above plan ofnsertng Teeth
tests both in and out of the mouth and having sew
eral sets Gall and whole in actual seruice, which give
entire satisfaction, has adopted in his practice and is
prepared to recommend TO public condolences the more
So from the unqualified expressions of preference, and
confident assurance its superiority over block Teeth on
gold plates, by persons VIII have tried both. Pure plaI
is used instead of gold the latter being necessarily
aloytd with silver and copper, fuses too readily for the
purpose Platinum is not acted upon by the fluids of
the mouth conseqneEtl is free from the metallic (ga-
vanc) taste often complained of in the of fine gold
This method OF setting Teeth has been in operation in
this office for several months but public notice has been
delayed to afford ample opportunity Of comparing 1t
thoroughly with every other known aud popular mode
and also, not 10 excite public expectations, without JUS
tifable basis Its comparative advantages In the con
structiOn OF half or whole SETS upon the atmospheric
pressure principle, will be demonstrated upon appca-
ton. Among them the following, VIII
The gum is continuous, presenting in entire piece
without seam OF joint most beautiful life-iiKe appear
ance. They are WON with more ease, and retained
with greater frmneSs there beng warping of the
plate in soldering process which, invariably, produ-
ces more or less sprnging of gold plates and i'll pro-
portion to It's extent, mpairs The suction ami often rem
ders otherwise successful denture complete failure
They are more easily kept clean as 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
when broken by accident
Persons preferrg hlockteeth, however gold Plates
heretofore. Having superior facilities for the anuac
tue OF mineral teeth and especially, for the style
Of ,c0rk, and an
Experienced Assistant
the different departments, applicants will be served
at short notice.
In regard TO the of platinum for dental purposes
Prof Chace, Professor of Chemistry Brown Univers-
ty, writes DR. Halves and brother, Of Providence, r.
L., as follows:
Brown UNIVERSITY April 10, 1852.
GENTLEMEN To your inquiry whether platinum
may be employed with safety health in dental opera
tions have no hesitation in giving Affirmative
It's of the most inatackable substances in
nature Although resembling silver in appearance, it
has twice the density OF that METAL and differs
kably ftom in nearly all its hysical and chemical prop
critics. Only two Of the known acids-the nj muriat-
ic and the nitro ydrOluoric- any effect upon it,
both of which dissolve gold with greater facility
Neither platinum nor gold when pure at all acted
upon BY the fluids of the mouth, and consequently
exert preudca influence upon the system when used
the filing fastening of teeth AS the former, how
ever is found in and the arts unadutera
ted state only, while the latter is met with alleged in
every proportion with the baser metals, the employ
meht of platinum may always be regarded safer than
the use of gold unless ii has come Immediately from
the hands OF the assayist. Yours, &C,
GEO. |. CHACE, Professor of Chemistry.
Messrs. A. e. Halves 81 Brother.
Office l42 Main street Residence No. ii award
Worcester, May %, 1852. dawistf