FIXED
EXPANSION
We use the largest expansion screw that will fit as deeply into the palatal vault as possible. If you'd prefer a different screw from another manufacturer, just let us know— we probably carry it.
You have several options for banding. To ensure the best end result, you should send us a model with the bands you've fitted/sized to your patient's teeth and properly placed on the model. Please thoroughly inspect this banded model for accurate band placement before you send it to us.
The second best option is to send us the bands, which you've already fitted/sized to the patient, for us to seat on the model in our lab. Put the bands in properly labelled little baggies and include them with the prescription and model.
The final option, whereby we band your model with our bands, should only be used as a last resort because its accuracy is far inferior to the first two choices. It creates a much greater chance for improper and/or uncomfortable fit for your patient. Obviously, a band fit to a plaster model is no substitution for a band fit to your patient's tooth.
So use minimal wax when securing your bands. Glue is unnecessary, very difficult to remove, and produces noxious fumes when we solder.
Make sure your bands are accurately placed, strong and wide enough for any soldered attachments, and not slipped or torn.
To help us make your appliance correctly the first time, please be as specific as possible on your prescription regarding exactly what you want us to make.
Save yourself some money...clean up your models before you send them to us, otherwise we have to charge you when we do it!
Haas Rapid Palatal Expander
5 screw sizes: 5.5mm, 7.5mm, 8.5mm, 10mm, and 13.5mm
This is the original standard design specified by Dr. Andrew J. Haas. It
includes a 13.5mm expansion screw (item #044-001), placed as deeply into the palatal vault as possible, lingual and buccal bars, and 4 bands. We typically use the largest screw that fits.
We can always add headgear or archwire tubes, and protraction or crossbite hooks.
Bonded Haas RPE
5 screw sizes: 5.5mm, 7.5mm, 8.5mm, 10mm, and 13.5mm
Our standard includes the 13.5mm expansion screw (item #044-001), placed as deeply into the palatal vault as possible, no bands, wire framework within the acrylic that contours along the lingual and buccal margins, soldered to interproximal wires.
Available with and without (as shown) occlusal acrylic coverage.
Bonded Haas RPE w/Fan Screw
Constructed with a small fan screw (item #045-023) that expands up to 9mm. This screw pivots from the posterior and is ideal for cleft palate cases, where more expansion is desired in the anterior region.
No bands. The wire framework within the acrylic contours along the lingual and buccal margins, and is soldered to interproximal wires.
Available with and without (as shown) occlusal acrylic coverage.
Haas RPE w/Fan Screw
Made with a small fan screw (item
#045-023) that expands up to 9mm.
This screw pivots from the posterior
and is ideal for cleft palate cases,
where more expansion is desired in
the anterior region.
Other than the fan screw, this appliance is constructed similarly to our standard Haas Rapid Palatal Expander.
Haas RPE w/Habit Breaker
With .032" loops, embedded in the acrylic, to correct tongue and thumb habits.
Other than the habit loops, this appliance is constructed similarly to our standard Haas Rapid Palatal Expander.
Direct Bond Palatal Expander
5 screw sizes: 5.5mm, 7.5mm, 8.5mm, 10mm, and 13.5mm
Our standard inlcudes the 13.5mm expansion screw (item# 044-001), placed as deeply into the palatal vault as possible, and .026" wire buccal loops that aid in debonding. We typically use the largest screw that fits. Protraction hooks may be added if desired.
Hyrax Palatal Expander
No acrylic.
4 screw sizes: 8mm, 9mm, 11mm, and 13mm
Our standard includes the Leone 13mm expansion screw (item #044A-029), placed as deeply into the palatal vault as possible, lingual and buccal bars, and 4 bands. We typically use the largest screw that fits.
Bonded Hyrax Expander
A bonded Hyrax is not banded, but instead has a wire framework around the lingual and buccal margins, which is then completely covered in acrylic.
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This particular bonded Hyrax has soldered facemask hooks.
Hyrax Expander Single Barrel
No acrylic.
This Hyrax is made with the single-barrel Dentaurum Variety screw (item #044-030), with 12mm expansion.
For narrower palates, try the Dentaurum Variety SP (item #044-040), also 12mm expansion, but with arms that are welded on the side of the screw barrel facing away from the palate.
Hyrax Expander w/Leone Exspider
No acrylic.
This Hyrax is made with the Leone Exspider fan screw (item #044A-053), with 9mm expansion. This sturdy screw pivots from the posterior, and is especially useful for cleft palate cases that require more anterior expansion.
Hyrax Expander w/Dentaurum SP
Also known as a Fixed Lower Expansion Appliance (FLEA).
Our standard includes 2 bands, anterior springs, lingual bars, stabilizing bars, and molar rests. You may choose from several styles of low-profile expansion screws. The main photo (above) shows the Dentaurum Variety SP (small palate) screw (item #044-040), with 12mm expansion.
Hyrax Expander w/Leone Half-Screw
This Hyrax is fabricated with Leone's lingual half-screw, which is available in either 8mm (item #044A-054) or 11mm (item #044A-058) expansion.
T-Rex Pendulum Expander
5 screw sizes: 5.5mm, 7.5mm, 8.5mm, 10mm, and 13.5mm
Our standard includes the 13.5mm expansion screw (item #044-001), placed as deeply into the palatal vault as possible, 4 bands, and preactivated pendulum springs for distalizing the molars. We typically use the largest screw that fits.
Hilgers Expander
5 screw sizes: 5.5mm, 7.5mm, 8.5mm, 10mm, and 13.5mm
This is another variation of a fixed molar-distalizing appliance.
Our standard includes the 13.5mm expansion screw (item# 044-001), placed as deeply into the palatal vault as possible, 2 molar rests, 2 bands, and preactivated pendulum springs for distalizing the molars. We typically use the largest screw that fits.
Hyrax Expander w/Leone Half-Screw
This Hyrax is fabricated with Leone's lingual half-screw, which is available in either 8mm (item #044A-054) or 11mm (item #044A-058) expansion.
