Useful links

The French Society of Dento-Facial Orthopaedics (SFODF)

https://www.sfodf.org

The French Orthodontic Federation

https://orthodontie-ffo.org

World Federation of Orthodontics (WFO)

https://www.wfo.org

The Spanish Society of Orthodontics by Aligners

https://www.sedo.es