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CSA
Castable
Spherical Attachment |
Benefits
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Reinforcement for the
sphere.
- Increased strength of the sphere (FIG
1)
- Guide for the alignment of the cap (FIG
2)
- Cast metal cooling more balanced.
May be used on the side of a cast bar when vertical
space is limited, and also on the distal of an abutment crown for removable
partial dentures. |
Components
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CSA Male
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CSA Metal Housing |
CSA Female |
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CSA Analogue |
CSA Male Paralleling
Mandrel |
CSA Female Insertion
Tool |
CSA
Instructions
4 |
5 |
| Invest, sprue, and cast (FIG 4)
in a hard alloy. Do not sandblast to devest, as this will leave a very
rough surface on the sphere. Polish the casting (FIG 5),
but do not rubber wheel the sphere as this will change the size of the
sphere and the female will not fit. The cast components are sent out
for try-in and picked up in a new master impression. |
Fabrication using the Steel Housing
6 |
7 |
| The finished casting, female
cap, and metal housing (FIG 6).
Place the female cap on the male (FIG 7).
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8 |
9 |
| Seat the metal housing on
the female cap (FIG 8).
Duplicate the model and pour up a refractory model for the cast framework. Wax up the framework on the
refractory model. Do not cover the female or housing area with wax (FIG
9). |
10 |
11 |
| The steel housing may be soldered to the framework (FIG
10), or the housing may be attached to the cast frame with
self-curing resin (FIG 11). |
12 |
13 |
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The housing may be also bonded to the cast frame with
anaerobic cement (i.e. Ceka Site) (FIG 12).
Complete processing the acrylic resin of
the final prosthesis. Place the
final female cap into the housing using the CSA insertion tool (FIG
12). Insert the cap from the vertical side. |
T0011.REV.00
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