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THE GOLD INLAY IQI
Taggart for his work in greatly improving the methods of
constructing the gold inlay, it must be said that these methods
were not entirely original with him, but were a revival or
adaptation of very old principles, used over long periods of
time in mechanics and the arts. The ''Cire Perdue," or dis-
appearing model, or ''wasting wax" process of casting was
in common use in the founding art thousands of years ago.
This is also true of the centrifugal and pressure methods of
casting.
THE GOLD INLAY
The indications for the gold inlay may be mentioned as
follows, viz.
1. For restoration of abraded surfaces, owing to its
density.
2. As a substitute for the shell crown in badly broken
down posterior teeth.
3. As a time saver to operator and patient.
4. In cavities where prolonged exclusion of moitsure is
impossible.
5. In invalid, young, or old, patients, unable to bear
prolonged operations.
6. In teeth with weakened peridental membranes.
7. As abuttments for bridge-work.
Gold inlays are, as a rule, contra-indicated in small
cavities, shallow cavities, and proximal cavities not involving
the angle, unless these latter are large and the lingual wall is
lost, thus allowing ready withdrawal of the wax model and
insertion of the inlay from the lingual aspect. Since the
introduction of the gold inlay and the synthetic filling, the
use of cohesive gold as a filling material has rapidly dimin-
ished. However, there are still many conditions which
justify its use, and the gold building operation far exceeds
THE GOLD INLAY IQI
Taggart for his work in greatly improving the methods of
constructing the gold inlay, it must be said that these methods
were not entirely original with him, but were a revival or
adaptation of very old principles, used over long periods of
time in mechanics and the arts. The ''Cire Perdue," or dis-
appearing model, or ''wasting wax" process of casting was
in common use in the founding art thousands of years ago.
This is also true of the centrifugal and pressure methods of
casting.
THE GOLD INLAY
The indications for the gold inlay may be mentioned as
follows, viz.
1. For restoration of abraded surfaces, owing to its
density.
2. As a substitute for the shell crown in badly broken
down posterior teeth.
3. As a time saver to operator and patient.
4. In cavities where prolonged exclusion of moitsure is
impossible.
5. In invalid, young, or old, patients, unable to bear
prolonged operations.
6. In teeth with weakened peridental membranes.
7. As abuttments for bridge-work.
Gold inlays are, as a rule, contra-indicated in small
cavities, shallow cavities, and proximal cavities not involving
the angle, unless these latter are large and the lingual wall is
lost, thus allowing ready withdrawal of the wax model and
insertion of the inlay from the lingual aspect. Since the
introduction of the gold inlay and the synthetic filling, the
use of cohesive gold as a filling material has rapidly dimin-
ished. However, there are still many conditions which
justify its use, and the gold building operation far exceeds
