ISOLATION
■Better visibility to the
area to be restored
■Clean and dry cavity
walls
■Prevent moisture
contamination of the
teeth- critical with
today’s techniques
■Provide optimum
visibility of the
operative site
Figure 4.1
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Dental isolation techniques and procedures
Typology: Slides
2025/2026
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ISOLATION
■ Better visibility to the
area to be restored
■ Clean and dry cavity
walls
■ Prevent moisture
contamination of the
teeth- critical with
today’s techniques
■ Provide optimum
visibility of the
operative site
Figure 4.
ISOLATION
■
Protect patient against
aspiration of dental
instruments and materials
■ Not interfere with
operator’s visual or
mechanical access to the
operating site
■ Not injure patient’s soft
or hard tissue
Figure 4.
RUBBER DAM
The rubber comes in
different color, sizes and
weights.
The use of a dark rubber
dam is universally
accepted because of the
color contrast in the
operative field.
Figure 4.
RUBBER DAM
■ The weight of rubber dams (their gauge or
thickness) ranges from light to extra heavy.
■ The disadvantage of using a light weight rubber
dam is that it is easily torn during the operation
■ The heavyweight rubber afford more stability when
being held in the retainer
ADVANTAGES OR
RUBBER DAM ISOLATION
Prevent moisture contamination
Retracts & controls soft tissue
Protects from aspiration
Provides optimal visibility & access
Control aerosols
DISADVANTAGES
Discomfort if not numb
If patient is claustrophobic
Patient suffers from
congestion
Patient may be allergic to
latex
Time??
Non-latex dam is now available!
SET-UP: (clockwise from LL corner)
Dam and frame
Clamps
Ligating cord
Scissors
Forceps
Punch
Flat burnisher
Figure 4.
PUNCHES
■ One hole is
punched in the
rubber for each tooth.
■ The hole to be
punched should
correspond to the
size of each tooth
being isolated
Figure 4.
PUNCHES
■ The ideal rubber dam punch
has five or six holes in the
punch plate
■
The holes in the plate are
graduated from small to large
and are used for the lower
incisors up to the large molars
■
The cervical diameter of the
teeth being isolated dictates the
size of the hole selected
Figure 4.
RETAINER
Can be folded to one side after placement.
Provides better access to the oral cavity. Ideal for
taking X-Rays and saliva aspiration during
treatment
Built-in frame, with pre-punched hole. Made with
translucent natural latex that is very stretchable,
tear-resistant and provides easy visibility.
Figure 4.
Figure 4.
RUBBER DAM NAPKINS
To enhance the rubber dam
application an absorbent
napkin could be used to
protect the tissue underlying
the rubber dam
The napkin catches the
saliva that spills over the lips
and at the same time keeps
the rubber off the facial
tissues
Fig 4.
PARTS OF A CLAMP
Parts of clamp:
bow
jaw
wing
prong
Figure 4.
CLAMPS
■ The rubber dam clamp is
the key to the stabilization
of the rubber dam.
■ It is used to anchor the
dam material in place and
sometimes to retract the
gingival tissue
■ The winged clamp allows
the rubber dam to be
attached to the clamp
prior to placing it
JAW: part of the clamp witch is expanded to fit over a tooth
FORCEPS HOLE: where the forceps attaches to the clamp
POINTS: parts of the jaws witch contact the tooth when the
clamp is properly placed on the tooth
BOW: an arched band of metal, joining the two jaws of the
clamp together
Figure 4.