Espace réservé aux professionnels de santé !
En application de la loi du 29 décembre 2011 relative au renforcement de la sécurité sanitaire et des produits de santé dite loi Bertrand, je certifie être un professionnel et être ainsi autorisé à accéder à cet espace!

Numéro d'inscription au Conseil de l'Ordre : 
28 rue Ampère, BP 28 ZI, 91430 IGNY, France - Tel: +33 1 69 41 90 28 - Fax: +33 1 60 19 32 22

The Palatal Expander is a true shape-memory Quad Helix. It is a simple appliance that favorably replaces the Quad Helix in children. Lateral arms allow expansion up to the cuspids; U-shaped elements control the torque of the molars; a "W" made from thermal NiTi controls the molar expansion.



• 1 Lateral stainless-steel arms

• 2 Thermal NiTi part for expansion

• 3 Crimping

• 4 U-shaped metal elements for torque control

• 5 Bayonets to be inserted in lingual sheaths



The Expander is available in 10 sizes from 26 to 44 mm, in 2 mm increments. In order to select the proper size, measure the palatal distance between both first molars and add 3 to 4 mm to get the size you need. Should the intended expansion be superior to 5 mm, you will need two successive Expanders.


Once the model has been selected, place the device in the patient's mouth, cool the thermal part with a freezing spray (or place it in a freezer), the appliance becomes very soft and can easily be inserted in the palatal sheaths of the bands, where it will be ligated. The PE can be adjusted intraorally using a band-pusher and exerting a pressure on the crimps or extraorally with a couple of flat-beaked pliers, to bend the crimps against the palate.



Easy to install, especially when freezing the Expander to make it brass-soft and easy to insert without any force.

Pre-programmed expansion with millimetric precision, without any risk of overcorrection beyond the chosen limit, at the opposite of the Quad Helix that can send a molar out of the arch, in case of deformation or in the absence of follow-up.

Nice molar expansion

Nice mesio-buccal rotation of the molars

Good torque control

Expansion in 3 month.


Tél : +33 1 69 41 90 28  
IGNY Orthoplus

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