Dear Customer
Thank you for choosing a quality product from Dentaurum.
In order to achieve the best results with this product, it is important to carefully
study and follow these instructions for use.
Instructions for use cannot describe every eventuality and possible application.
In case of questions or ideas, please contact your local representative.
Due to constant developments we recommend, even when you use our
products regularly, to study the enclosed current instructions for use or to refer
to our website at www.dentaurum.com.
1. Manufacturer
Dentaurum GmbH & Co. KG
Turnstr. 31 | 75228 Ispringen | Germany
2. General product description
The palex
®
screw (Palatal Expansion Screw) is a special screw for rapid palatal
expansion. The retention legs of the palatal expansion screw are welded onto
preformed metal bands or cap splints. Alternatively, they can be polymerized
into acrylic splints. The bands or splints are cemented in the usual way. Please
observe the instructions from the cement manufacturer.
3. Area of application
Used for rapid palatal expansion with a fixed appliance.
4. Fabricating a palex
®
appliance using the example of preformed
bands
Preformed bands are fitted on the maxillary left and right 1st bicuspids
and left and right 1st molars. These bands are transferred to a dental stone
model using an impression or fitted to a dental stone model. The legs of the
palex
®
screw are then bent to fit the bands so that they can be welded into
place (Fig. 1).
Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Universal bending tool
REF 611-122-00
Safety key
REF 611-120-00
To prevent the legs from breaking during bending, we recommend using our
universal bending tool (REF 611-122-00, Fig. 4). If one is not available, hold the
legs against the body of the expansion screw, using strong flat pliers (Fig. 5).
The palex
®
screw should „float“ freely at least 1 – 2 mm above the palate
roof / gingiva (Fig. 2). Its posterior side should form a straight line with the
mesio palatal cusps of the 1st molars. To avoid any leverage effect, it should be
ensured that the occlusal level is parallel.
5. Information on use of palex
®
screws
To increase strength, the bands can be joined on the buccal and/or lingual side
with a piece of 1.0 mm remaloy
®
wire (REF 528-100-00). Laser weld these
wires above the legs. The palatal strengthening wire should project slightly
beyond the bands and be supported by the adjacent teeth to allow better
distribution of expansion forces.
Easy, problem-free bending of the retention legs of palex
®
screws with the
universal bending tool (REF 611-122-00), without the use of additional pliers
(leverage principle).
To prevent the legs from breaking during bend ing, they should be held against
the body of the expansion screw using strong flat pliers e.g. Maxi wire-bending
pliers (REF 013-522-00).
When using the soldering technique please protect the body of the screw
against excessive heat, e.g. with heat screen (REF 380-070-00).
6. Composition
The composition is included in the materials list, refer to www.dentaurum.com.
7. Safety information
Always use the blue safety key (REF 611-120-00) to prevent swallowing! The
product should not be used, if there is a known allergic reaction to one or more
of the material components.
8. Information on single-use products
The product is intended for single use only. Reconditioning of a product that
has already been used (recycling) and its reuse on a patient is not permitted.
