Page 195 - My FlipBook

FILLING BY CLASSES AND MODIFICATIONS. 191

An instrument recently brought to the notice of the
profession, by Dr. W. H. Dibble, called "Dibble's
Saliva Pump," performs the work of both the saliva
pump and speculum, or tongue holder. As a saliva
pump it is much superior to the instrument repre-

sented in Fig. 48, which is in common use.
It is operated by the patient, and removes the
saliva immediately after it enters the mouth, and
may be in constant action, without the slightest in-
terruption of the operation of filling; the saliva passes
into a reservoir, and is perfectly enclosed, till the
operation, however protracted, is completed.
That part of the instrument designed to hold the

tongue, and the buccal surface, from the tooth to be
operated upon, and to hold the jaws apart, is of a
very excellent form, and accomplishes its work well.
It is in three parts, one adapted to each side of the
mouth—in these the saliva is taken up by the instru-
ment opposite the lingual surface of the second inferior
molar—and one for the front, with a compressor
passing on -to the tongue and holding it firmly down,
and the pump-tube, taking the saliva from the immedi-

ate vicinity of the sublingual ducts.
This latter part of the instrument is the device of
Dr. B. F. Arrjngton. The instrument is well repre-
sented in Fig. 49.
In the use of the common speculum, much difficulty