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To Order Tel: 01274 533233 . Fax: 01274 537663 . Email:
Anchorage, Implants
and Extra-Oral Products
Spider Screw
®
Temporary Anchorage Device System
The Spider Screw’s geometry is a result of careful design in every single detail.
In fact, the Spider Screw has obtained two international patents due to its innovative
characteristics: the simultaneous presence of the external and internal rectangular slots
and round internal slots.
The Spider Screw has been developed to offer a number of versatile anchorage options
capable of immediate loading. Immediate loading is possible because the Spider Screw
is a non-osteointegrable implant, and consequently force can be applied immediately
after placement. The applied force can range from 50 to 300 grams, depending on
screw choice, bone quality, and the desired orthodontic movement.
The Spider Screw’s design is extremely versatile, due to its small dimensions and unique
design. It is easily placed in either the maxilla or mandible, even where access is limited
and bone quality less than ideal. Placement is simplified by the self-drilling feature
found in the K1 and K2 Spider Screw systems.
The Spider Screw is an anchorage device that can be used during every phase of orthodontic treatment, and is suitable for symmetric
and asymmetric anchorage. The Spider Screw assists in the success of orthodontic treatment, both in adults and adolescents, by reducing
treatment times without patient compliance.
The Spider Screw is supplied clean and sterile inside a sealed polypropylene bottle. Included in the pack are three removable stickers
containing important information (device name, reference code, lot number etc.) which can be applied to the patient’s card for traceability.
Orthodontic Head
The orthodontic head was
designed to facilitate
appliance (wires, springs
etc) placement. There is a
bracket-like head, featuring
two intersecting .022” slots.
The under tie-wing area can also function as another
.022” x .025” slot, and features two intersecting slots
of .027” in diameter, with chamfered inlets to simplify
insertion of wires or ligatures.
Transmucosal Portion
The length of the transmucosal portion is variable and
allows for optimal adaptation to different intraoral
mucosa thicknesses during bio-maintenance. Short for
areas of thin attached gingiva. Long for areas of thick
or movable tissues. The transmucosal portion is polished
with a special treatment to help avoid soft tissue irritation
and make cleaning easier to accomplish.
Infrabony Portion
The Spider Screw’s thread shape has an
asymmetrical profile, making it easy to
place, while ensuring maximum stability
and avoiding bone stress. Spider Screw K1
Ø1.5mm, and Spider Screw K2 Ø1.9mm,
tapered thread, are self-drilling and self-
tapping, which makes pre-drilling before
insertion unnecessary. This makes the Spider
Screw K1 and Spider Screw K2 easy
to place, while reducing the risk of root
damage.
Spider Screw C1 Ø1.5mm requires pre-drilling, and is used
in areas that have poor bone quality or greater retention
requirements.
