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EXCLUSION OF MOISTURE IO5
6. Cork.—Force properly shaped pieces of cork into
position, increasing the size at each visit, until the desired
result is obtained.
The rapid separator is quite largely used today. Among
the more prominent ones may be mentioned the Ivory
Universal, the Ivory Double-bow, the Ivory Adjustable,
the Perry (set of six), the Perry Universal and the Elliot.
One or the other of these separators is frequently valuable for
the following purposes
1. For examination of inter-proximal spaces,
2. Preparatory to slow separation,
3. To maintain space gained by previous separation,
4. For preparation of cavities,
5. For insertion and polishing of fillings and inlays,
6. For removal of foreign bodies, such as berry seeds,
fragments of toothpicks or bone sequestra.
During its use the force should be applied very slowly and
gradually, at the same time encouraging the patient by tact-
ful methods. In cases where the teeth are exceedingly close
and firmly implanted, it is wise not to force the instrument
too much, but rather to adopt a combination of the rapid and
slow methods.
EXCLUSION OF MOISTURE
There are two general methods of excluding moisture from
the field of operation, (i) by the use of the rubber dam and
(2) by application of absorbents and non-absorbents.
Exclusion of the secretions of the mouth from the field
of operation and the production of absolute dryness are
essential to the correct performance of most dental operations.
This is necessary for the following reasons
1. To secure cohesion of gold,
2. To perfect the view of cavities,
EXCLUSION OF MOISTURE IO5
6. Cork.—Force properly shaped pieces of cork into
position, increasing the size at each visit, until the desired
result is obtained.
The rapid separator is quite largely used today. Among
the more prominent ones may be mentioned the Ivory
Universal, the Ivory Double-bow, the Ivory Adjustable,
the Perry (set of six), the Perry Universal and the Elliot.
One or the other of these separators is frequently valuable for
the following purposes
1. For examination of inter-proximal spaces,
2. Preparatory to slow separation,
3. To maintain space gained by previous separation,
4. For preparation of cavities,
5. For insertion and polishing of fillings and inlays,
6. For removal of foreign bodies, such as berry seeds,
fragments of toothpicks or bone sequestra.
During its use the force should be applied very slowly and
gradually, at the same time encouraging the patient by tact-
ful methods. In cases where the teeth are exceedingly close
and firmly implanted, it is wise not to force the instrument
too much, but rather to adopt a combination of the rapid and
slow methods.
EXCLUSION OF MOISTURE
There are two general methods of excluding moisture from
the field of operation, (i) by the use of the rubber dam and
(2) by application of absorbents and non-absorbents.
Exclusion of the secretions of the mouth from the field
of operation and the production of absolute dryness are
essential to the correct performance of most dental operations.
This is necessary for the following reasons
1. To secure cohesion of gold,
2. To perfect the view of cavities,
