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HISTOKY OF DENTAL SUEGEEY 201

1858, published an article credited to the "American Journal of Dental Sci-
ence" for July, 1857, in which Dr. A. J. Volk described a method of making an
inlay for a labial cavity using a piece of artificial tooth, matched in color and
ground to fit the cavity loosely. The cavity was prepared with perpendicular
walls and flat bottom (or a flat foundation of filling material). The inlay
was wrapped with No. 4 foil wider than its thickness, carefully carried
to its place so the gold would go with it to the bottom of the cavity, and the
protruding portion packed into the crack, leaving a porcelain surface with a
very narrow ring of gold surrounding it, finished with corundum slabs and
polished with Arkansas stone. Dr. Volk said the operation had l)een sug-
gested to him by Professor Maynard of Washington.
At the meeting of the Pennsylvania State Dental Society, in July, 187(5
("Cosmos," Vol. XVIII, p. 486), Dr. B. J. Bing, of Paris, explained his
method of filling badly decayed teeth with Hill's stopping and pressing into its
surface a plate of pure gold having loops or staples of gold or platinum soldered
to the under side. It is carried to its place hot, burnished down to the margins
and finished as an ordinary filling. This method was apyiarently used only for
large occlusal cavities.
Prof. Charles Essig, at the meeting of the Pennsylvania Association of
Dental Surgeons, in March, 1877 ("Cosmos," Vol. XIX, p. 314), described
the application of Dr. Bing's method to large compound cavities by restoring
contour in wax, taking impression and model, making die and counter, swag-
ing a cover of pure gold, soldering loops of gold or platinum wire on under
side, then packing the cover and cavity with gutta-percha or Hill's stopping,
carrying the cover to place hot, correcting articulation liy biting on it while the
gutta-percha is soft with heat, and burnishing to margins.
These operations cannot be called inlays in the strict sense, but it is
noticeable that the plan described })y Dr. Essig has been lately in use for mak-
ing the covers for hollow gold inlays.
At a meeting of the Xew York Odontological Society in February, 1877,
("Cosmos," Vol. XIX, p. 349-50) Dr. C. E. Francis describes an operation
made in a first u]iper liicusjiid liaving the buccal cusp broken and containing
a large gold filling. He ground away the Iniccal enamel to the gum margin,
ground a cuspid tooth to fit, riveted this facing to a strip of platinum, which
was fitted round the remains of the tooth, taken off and soldered, making a
band. This facing and band were set with oxychloride of zinc, and filled in
with gold. He said he had treated many similar cases in the same way and
usuallv with success.