Page 59 - My FlipBook

FILLING TEETH 43.

lisrht or light medium blow should be used in all
ordinary cases. The question to be settled is
therefore principally confined to size of plugger
and forms of gold. The condensing power of the
fine point gives it a fairly wide range as to the
form of gold that may be used in connection with
it, and the more favourable the form of gold, the
greater the latitude in the selection of sizes of pluggers.
It has also been pointed out that semi-cohesive
gold may be used in slightly larger pieces than the
fully cohesive, and it consequently happens that
gold in the semi-cohesive state still further some-
what increases the range or latitude of forms of gold
and sizes of pluggers.
To go further into this question would lead to
confusion, but as an illustration of the writer's
meaning, he may select the following examples from
a number of experimental fillings he made in a
steel block, using a mallet force (medium or light
medium), which rarely causes a patient any incon-
venience.
Strips of No. 4 foil folded up to No. 16, packed
and condensed with a plugger point three sixty-
fourths of an inch in diameter, produced perfect
adaptation, and a specific gravity of 18*9.
With the same sized plugger and same amount
of force, strips of the same gold folded up to No.