All the benefits of the exchangeable VKS without the variables of the
casting process
Provides retrievability
Titanium bond-in thread sleeves available in 2.2mm and 1.7mm sizes
Cost effective alternative to the cast-on thread sleeve
(platinum-iridium)
Suitable for SG and OC applications
A 1.7mm auxiliary modeling
element (#450 000 73) is placed into a VKS paralleling mandrel
and is waxed to the coping using a surveyor. The modeling
element creates a 0.5mm larger receptacle to accommodate the
cement used to bond in the threaded sleeve.
After wax has been applied
around the auxiliary modeling element, it is carefully removed.
Note: a vertical guide plane is created by applying wax directly
onto the paralleling mandrel while waxing-in the modeling
element.
Completed wax-up and ready
to sprue for casting.
Lingual arm shoulder rest
and groove are redefined and castings are finished as usual
Porcelain work is finished
and metal areas are polished. Note: sandblast the hole lightly
to remove any excess porcelain material.
1.7mm titanium threaded
sleeve, stud-head screw and screwdriver. *WARNING:
Screwdriver is designed to break before screw head to
avoid over torquing and breakage at the ball platform where the
screwdriver engages.
Use high quality
anaerobic cement and apply it evenly into the hole created by
the auxiliary modeling element. NOTE:
Make sure to insulate with separating medium any areas where
bonding cement is not desired such as, the model, paralleling
mandrel, etc.
Use the surveyor to
insert the ball screw/threaded sleeve assembly into the
receptacle coated with cement and allow it to set. Using the
surveyor will ensure that the attachment is set absolutely
parallel.
After the cement has set,
release the mandrel from the attachment and inspect. At this
time any excess cement can be picked off using a scalpel and
fabrication of the RPD can begin.
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All the benefits of the exchangeable VKS without the variables of the
casting process
Dimensions
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