Page 113 - My FlipBook

ADJUNCTS AND ACCESSORIES 8l

dam well up beyond the margin of cervical cavities. Of

these the Ivory (Fig. in), Dunn, Johnson (Fig. 112), Keefe
and How (Fig. 113) may be mentioned. Matrix Clamp is

another name for Matrix Retainer. A Cotton Roll Clamp is
a clamp designed to hold napkins or cotton rolls in position in
the mouth for excluding moisture.

Fig. 109.—Rubber dam clamps for anterior teeth.

Adjuncts and Accessories

(a) Ligature
(b) Rubber Dam

(c) Absorbent
(d) Mirror
(e) Scissors

(f) Syringe
(a) Ligature.—Waxed floss silk is the most popular ma-

terial for ligating the rubber dam in position. Hemp thread
or gilling twine and small sea-grass fish line are also used for
this purpose, as well as for regulating teeth, on account of
their additional strength. Brass and copper wire are like-

wise valuable for this purpose in special cases.
(b) Rubber Dam (c) Absorbent.—In operating in the

mouth, dryness is essential. For short operations, the teeth
to be operated upon may be excluded from moisture by the
use of small folded napkins, or cotton rolls (absorbents) of

various sizes. For long operations small holes are punched
in rubber cloth (rubber dam) and this is ligated in position,