Page 263 - My FlipBook

FILLING CANALS 23 1

when, the broach being withdrawn, a measurement of the
length of the tooth is seen, and a guide as to the length of the
canal is obtained (Fig. 276).
(c) Select a tapering Gutta-percha cone (Fig. 277), ap-

proximating the size of the canal, and cut off its end, until
it is the size of the apex as previously determined.
(d) Cut off a section about 3 or 4 millimeters in length,
which will be utilized for filling the apical portion. Also cut
the rest of the cone into small sec-

tions for filling the balance of the
canal.
(e) Wrap a smooth broach with
a few shreds of cotton, dip it in

eucalyptol and freely moisten the
canal. Avoid too much cotton on
account of the danger of forming Fig. 277.— Gutta-percha canal
a piston and forcing the solution
through the apex. Remove all excess of eucalyptol with a

broach wrapped with dry cotton, leaving the wall slightly
moistened with eucalyptol.
(f) Catch up the smallest section of a Gutta percha cone
on the end of a warmed root canal filler, dip it in eucalyptol,
remove the excess, carefully carry it to place, and tamp to

position, withdrawing the plugger, when the apical portion is
filled.
Continue the procedure with the next largest pieces in
(g)
order, carefully packing to position, and warming the largest
pieces, until the canal is filled; then seal the pulpal opening

with a warm plugger or burnisher.
(h) Fill the pulp chamber with Oxyphosphate of Zinc
Cement.
2. FILLINGSMALLCANAUS.—(Gutta-percha andEuca-

percha). Buckley's method.