Page 65 - My FlipBook

SAWING AND FILING SECTIONS 33

the broach is exposed full length. Then, removing the broach,
clear out the contents of the chamber and canals and render
clean and smooth so that a good clear-cut print may be made

later (Figs. 42 and 43).
(c) Transverse Sections.— (a) Mount the tooth longitudi-
nally on the block by means of sealing wax. (b) Fix in the
vise, and, with the saw, make a transverse section at the neck

Fig. 44.—Tooth mounted on a wood Fig. 45.—Gingival section of an
block and sawed into three sections. upper central incisor, mounted and
annotated.

and another at mid-root, thus cutting the tooth into three
sections, (c) Clear out the contents of the chamber and canals
with broaches and excavators, rendering the margins distinct

and clear for making prints later (Figs. 44, 45, 46, and 47).
(b) Mounting the Sections.—Mount the section perma-
nently on the block by covering the face of the block with
melted sealing wax, building it up so as to elevate the section

from the block if so desired. Smooth the wax with a spatula