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Leaf Expander® Series

no home activation

before
After

Swipe over and watch the expansion achieved with Leaf Expander® 450gr / 6mm, in 4 months

Why Leaf Expander®

The palatal expansion appliance series for a compliance-free therapy

Complete control of the maxillary expansion thanks to the predetermined, calibrated and constant forces released by the nickel-titanium MEMORIA® Leaf Springs.

Thanks to the unique characteristics of these expanders, daily home re-activation of the expander is not necessary. Leaf Expander® reactivation is performed by a clinician according to the suggested protocol, while the Leaf Self-activated Expander® model does not require re-activation either at home or by a clinician.

Prof.ssa Valentina Lanteri

Associate Professor in Orthodontics | UNIMORE University Modena and Reggio Emilia, Italy

I use the Leaf Expander® successfully whenever I need to solve a transversal discrepancy in young and adult patients. The nickel-titanium springs deliver calibrated and continuous forces allowing a predictable and pain-free expansion. In addition, since I don't have to rely on the parents' cooperation I have drastically reduced the number of control visits, optimizing my chair time to the mutual benefit of my clinic and the parents' schedules.
Pain free maxillary expansion

Leaf Expander®

Validated activation protocol

Follow-up visits reduced by 50%
(With respect to conventional RPE)

Caso 1

Treatment start

Caso 2

Treatment end

Leaf Self Expander®

No compliance or operator dependency

No risk of overtreatment

Caso 1

Treatment start

Caso 2

Treatment end

Photo: Courtesy of Dr.ssa V. Lanteri

CAD CAM Tooth borne

Leaf Expander® & Leaf Self Expander®
Less chair time
Better predictability
More comfort
Higher reliability


Contact your laboratory for further information
For U.S. Market: 3DLeone Designer Labs
Leaf & Leaf Self Expanders® Material

Clinical Cases

Complete collection of scientific articles since 2005

Explore Clinical Cases

Scientific Publications

A range of always available and freely accessible educational content

Browse Our Studies

Educational Videos

A wide selection of educational materials, always available and freely accessible

View Our Video

3D Leone Designer

Give shape to the orthodontics of the future with the first software for digital design of customised frameworks for innovative CAD-CAM expanders.

Discover the Software
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Learning

Leone International Symposium 2025

Join us for an exclusive symposium dedicated to digital transformation in orthodontics. With insights from 13 expert speakers, we’ll dive into the opportunities, challenges, and real-world applications of modern digital tools.

Key Themes:

  • TADs (Temporary Anchorage Devices)
  • Innovations in Digital Orthodontics
  • The Leaf Expander

Learn from practical applications and discover how these advancements are shaping the future of orthodontic practice.

Date: May 23-24 2025
Venue: Florence, Italy

Find out more about the event

Clinical book

Leaf Expander® Clinical Atlas

Explore innovative orthodontic techniques: this clinical atlas highlights the practical application of the Leaf Expander® through 30 different clinical cases, ranging from deciduous to permanent dentition. 

This Atlas goes beyond the traditional presentation of clinical cases, showcasing real-life scenarios with practical solutions to tackle everyday orthodontic challenges. It is a valuable resource for Professionals seeking to adopt less traumatic and more functional palatal expansion techniques.

  • Innovative Approach: Emphasizes less invasive palatal expansion techniques. 
  • Real Cases: Features 30 clinical cases from deciduous to permanent dentition. 
  • Practical Solutions: Offers tips to address common clinical challenges effectively.
  • Professional Development: A valuable resource to refine orthodontic practice. 

Request your copy

contact us to discover all the benefits of treatments with Leaf Expander® devices

We daily strive to provide specialized technical support. We are here to answer your questions, provide you with information, and ensure access to all the resources you need to get the most out of our products.

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