New-York tribune., 1906-10-13
TEETH MAKING CRAFT.
Army of Skilled artisans to Become
Union Lab0rers.

ing Of tha American Federation of Labor. that the
mechanical dentists OF the country had oeteInhea
to pull together and join the ranks OF orsaniz7o
labor, drew attention 10 the sroat numner OF "ehI@
carpenters who earn their living by the manu-
facture of false teeth. They are class ent'Teiy
apart from the dental surgeons who perform oeil-
cate operations for the preservation OF teeth They
hsYe hay no a2ma densa end fIe PSu But ey are
ably skilled workmen as Eule anu LleIi SaS e.
reasonable.
tTeiy recent date II is curious thing that oniy
with the advance OF civilization have mschaaica'
careful of skulls of the a:cierts PR
served in museums END elsewhere ah@ES eas tas5 so
the teeth remained round and white antil old age
physical organization. II is now fact. however'
that The teeth. which are the last proauct OF ouh
fail and fall into decay. Hence science hss
20 e ecIe sf Of @ ng 30 r cea ao Of those
who now attain half the allotted span OF lie owe
Jean Jacques Rousseau, who wrote The empire
of woman is an empire Of sweetness also wrote
the sweeping assertion, Never woman with
bad teeth pretty. but never was a woman Win Win
good teeth otherwise" and it is small wonder that
the dentist has become as necessary TO the women
Of today as the mSoiste OK me snle dc6c;ancies
have been arti5ticaliy supplied pause for minute
pIates Wc 3 ut Closer than the finest French kid
gloves and the pretty pearlg teeth which dety
Everybody knows that ;he first step toward sup
p5seios Of the guns and griaders which have
50 far resisted the ravages Of time that they are
to be permitted 70 remain as Somp2EiophS ms to 6ns
Of metal or porcelain tray. accurately shaped 10
ht the upper or lower Jaw. and filed with supple
wdXlihe composition, which rapidly sets hard ara
cordins even the most minute ridge wrinkle OF
the gums. That is about ali the ordinary patron
perfectly fitting teeth is adjusted in the mouth
to When n se of pa n mixed TO the proper
plaster cast is built up TO the height of about two
or three inches. When the Ulaster is set hard the
modelling composition Is made soft again with hot
water ana carefully reInoyed the dentlst then men
he's perfect cast 2f the patients mouth ana 'nis
These casts are always preserved in we'll regu-
deass s5sd grim but ntSTesng
sight There are ghcstly counterfeit Presentnlets
they are, with all their naked ln2perfectons eX-
posed 10 view, standing in tabulated rows, like
srinning skulls in catacom5 ~
which lie behind many proud beauties lips But
the IDENTITY OF these te!ae c23ts IS as closely
No dentists. themselves, manufacture the porce-
well constructed case. They arc special branch
of manufacture, and billions of them in al shades
STed Win a "HuIcanite' or ceiiuioid base. the
nest nonmIar in present use therefore. the ma
terials which go TO make full set Of thrty-two
Except in ''croWa work and bridge work"
where plates are unnecessary, the best basis or
denture is constructed Of gold which is used about
eighteen carats fine An anna gam or piGIna ana ana
used. The method of making artificial teeth with a
metal basis is briefly follows:
A reverse of the plaster cast IS made IN fine
casting sand, and into this mould is poured molten
mersed in ladle Of melted lead, or other soft
metal and by that means perfect die ana counter Counter
metal plate is hammered with such force that when
II IS removed it IS found fl the original plaster
cast with tie greatest accuracy 1t therefore fol-
lows that, after careful trimming, II fits: like a
skin. such parts of the mouth as it is designed to
BY means Of corundum wheels. operated small
Ia he aAf are
all inequalities Of the gums, shown in the plcs
ter cast. closely that. when worn, they appear
or other metal and first AFFIXED with wax TO the
metal plate. After being placed in plaster Of paris.
which sets and forms clamp, the wax is melted
away, and the gold backed teeth are soldered 10
the gold plate All that Is then required Is finish
ing and polishing and the denture is ready to be
placed in the mouth.
fitted 70 the plaster cast IN similar manner, and
then the cast is covered with a layer OF wax.
the fral plate IS required 10 be. There are pati
imbedded ]. the wax.
The cast wax and teeth. are then placed in the
liquefed plaster Of paris is poured over them, FILL
ing the upper section Of the flask. When tho
wax melted away with hot water The teeth To-
main imbedded in the plaster, AID where the wax
was is filed with properly prepared gum-colored ,
clanped tightly together. and the flask Is placed
in a steam "vUlcanzer' and kept at a heat Of |
3f5 degrees Fahrenheit for hour, by which time
the rubber has become hardened.
When cool. tie sections of the flask are separated
and the yulcanite plate, in which the teeth are |
firmly imbedded. is removed. All that is then ,
reed ed = trimming. filing ard polishing and If all
this has beer done with skill and precision the |
case should ct the plaster model and. conse-
quenty. the mouth. closely and comfortably as a