Figure 4-22.Adult rubber dam frame.
Figure 4-21.Rubber dam clamp forceps.
working ends have small projections that fit into two
corresponding holes on the rubber dam clamps. The
area between the working end and the handle has a
sliding lock device. This sliding lock device locks the
handles in positions while the provider moves the
rubber dam clamp around the tooth.
Rubber Dam Frame
To place and clamp a rubber dam around the tooth
is not enough. The dentist still needs something to hold
the loose outer edges of the rubber dam sheet so that the
area is visible, and provides access to the tooth being
treated. The need is met with an instrument called the
rubber dam frame. Most of the rubber dam frames used
today are U-shaped. One of the most popular is the
Young frame, which is available in adult (fig. 4-22)
and pediatric sizes. When the edges of the rubber dam
are connected to the small, sharp projections on this
U-frame, there is adequate access to, and visibility of
the area of treatment.
RUBBER DAM APPLICATION
The use of the rubber dam is an important part of
quality dental treatment and infection control. To save
valuable chairside time, place the rubber dam
following the administration of local anesthetic (as
directed by the dentist). To place the rubber dam, you
will need the rubber dam material, frame, punch,
clamps, and clamp forceps.
The first step in applying the rubber dam is to
check the contact areas of the teeth to be isolated. Use a
piece of dental floss to do this. The next step is to
determine which tooth the rubber dam clamp will be
placed upon. Once this is determined, select a rubber
dam clamp for a trial placement.
To prevent the patient from aspirating or
swallowing the rubber dam clamp, always tie
dental floss (ligature) on the bow of the clamp
before placing it in the patients mouth.
A simple and secure method is put both ends of a
piece of floss together and place them on a flat surface.
This forms a looped end where the floss is folded in
half. Place the clamp over the floss with the bow of the
clamp facing up. Now, place the two loose ends
through the looped end and carefully pull the loose
ends through the loop until the floss is secured tightly
over the bow of the clamp (fig. 4-23). You should now
Figure 4-23.Ligature on rubber dam clamp.