The segmental distalization element includes a smoothly arcuate central body equipped at one end with a head for adaptation to the canine and at the other end with a head for adaptation to the molar, connected to the arcuate body of the element via a zone of reduced cross-section to increase the resilience...http://www.google.fr/patents/US7985070?utm_source=gb-gplus-shareBrevet US7985070 - Segmental distalisation element for orthodontic treatments
Segmental distalisation element for orthodontic treatments