Page 99 - My FlipBook

CAVITIES IN THE GIXGIVAL THIRD 95
filled the cavity that the acljustiiieiit of the clamp and rubber dam
is difficult or impossible. In such cases if the pulp is not involved
much assistance is secured by packing the cavity full ot gutta-
percha base plate allowing it to crowd well down upon the gum.
In a few dajs the gum will have receded or have been absorbed
sufficiently to permit convenient access.
If the Pulp is Involved and requires extirpation make the appli-
cation of the devitalizing agent, covering this with amalgam which
should fill the cavit}^ Care should be taken that the gingival wall
has been planed to a solid condition. During this operation dry-
ness may be obtained by the assistance of cotton rolls.
When case returns the clamp will ride on the amalgam at the
gingival and access to the pulp may be had through the upper
portion of the amalgam. After the pulp canals have been filled
the dam may be removed, the remainder of the amalgam excavated
and cavit}^ preparations proceeded Avith, as well as the placing of
an amalgam filling, under dry conditions by the use of cotton rolls.
If Gold is to Be Used the gold inlay is clearly indicated as pro-
ducing the best results with the least tax upon patient and oper-
ator.
With Labial Cavities in the gingival third the Hatch clamp will
expose nearly every case presented and render access not difficult
for the introduction of a cohesive gold filling. In cases of ex-
tensive gum recession on labial exposures the porcelain inlay is
clecirlx' indicalcd and is considered in the chapters on that subject.