Cast
Post/Coping using the Castable Sphero Flex sphere
1
2
3
Insert the titanium single sphere inside the castable sliding guide
using the paralleling mandrel (FIG
1). Complete the wax up (FIG 2),
keeping the attachments parallel. Do not wax up the side with the
castable slide guide opening. Remove the titanium single sphere
from the castable sliding guide before casting (FIG
3).
4
5
6
Sprue
the cap, and be sure to leave clean the internal
side of the guide where the sphere will slide in(FIG
4). If the guide after casting isn’t perfect, finish
using a thin bur (FIG 5).
This also leaves enough room for your bonding composite. Cast
cap polished and finished. The guide provides mechanical
retention to the titanium base of the sphere (FIG
6).
7
8
Lock the sphere in
position using anaerobic or self-curing composite (FIG
7). Ceka Site is the best
material for bonding metal to metal. The finished cast cap and
titanium sphere in place after bonding (FIG
8).
Cast
coping using the Sphero Flex Post
1
2
3
Prepare the canal using the appropriate reamer (FIG
1). Try the post in prior to cementation. Making notches in the post (FIG
2) improves adhesive properties. Cement the post (FIG
3).
4
5
6
Adapt the roots until the collar of the post is totally uncovered and
clean carefully around it(FIG 4).Take an accurate impression
in order to reproduce the cast cover(FIG 5).The lab MUST use a very hardgypsum
when pouring the model (FIG
6). It is necessary to havethe reproduction of the circular part of the post.
7
8
9
Insert the Coping Cover inposition without the spring(FIG 7).Wax-up and cast(FIG 8).Finish and polish the casting.(FIG
9).Insert the spring and send for try-in.
10
11
Check if the Coping Cover fits on the root, remove and clean all parts (FIG
10).Fix the Coping Cover with cement; once the cement is hard the spring
blocks itself inside and becomes an unique body with the post(FIG 11).
