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136 HISTORY OF DENTAL SURGERY ;

by Dr. Kirk, remains to be determineil." The committoe favored the use
of the simple word "occlusal" to designate this surface of all of the teeth.
They also recommend that the choice between the words '"gingivar' and
"cervical" should be given to the latter, because "it is exact in its meaning
and has the sanction of long use." Former recommendations that the molars
be designated as tirst, second and third, respectively, and that the word
"cuspid" is preferable to '"canine" as indicating the single cusp tooth, while
the word "bicuspid" designates their neighbors with two cusps, were rendered.
In indicating a particular tooth, a methodical manner was recommended.
First, the jaw, then the side, and lastly the tooth should be referred to as,
"superior, left, second molar."'
It was also recommended that the final vowel "e" in dentin, iodin, etc.,
be dropped.
At the same time Dr. Grant Molyncaiix, of Cincinnati, reported with
reference to prosthesis. The distinction between a cast and a model, words
which had generally been interchangeable as synonyms, was made clear, "a
model" being deiincd as something that is to be imitated or reproduced in
metal. A "plaster-cast" is a fac-simile of a mouth, upon which a denture
is to be molded. To use "\ailcanite" and "rubber" as sv'nonyms was decided
to be improper, and "vulcanite" the term to be preferred.
In the metallurgical department the terms "white metal," "platinized
silver" and "platinized gold," when referring to gold alloyed with platinum,
sometimes called "clasp metal" and "spring metal," were also considered.
The combination of platinum and gold generally known as "clasp metal"
would be called "platinous gold," but if it is necessary to increase the
quantity of platinum in an alloy, it would then be called "platinic" alloy
and additional compounds being added, the prefixes "hyper" and "hypo"
could be used, so that the designation of the compounds may also be definite
in term.
It was recommended that in the word "aluminium" the last "i" be drop-
ped in keeping with a rule which has governed in metallurgy for more than
fifty years, which established the use of the extra "i" only in very rare
metals.
Dr. Black's suggestion to substitute the word "occluding frame" for tho
word "articulator" was not sustained in this report, but it was recommended
to adhere to the latter word because of its long usage, Ijecause it was a
single word, and because the word was more suggestive of the operation to
be performed. The words "prosthesis" and "prothesis" having been used as