A cephalometric study of Class II, Division 1 treatment using differential torque mechanics

Force system generated by elastic archwires with vertical V bends: a three-dimensional analysis

“…An a/L ratio of 0.5 when viewed from a buccal perspective is actually located 11.3 mm from the incisor bracket and 18.2 mm from the molar bracket. This has never been taken into consideration in previous renderings of a similar set up (3,6).…”

“…In the past, force system of similar 2D two teeth segment has been extended to explain the working of clinical appliances having a 3D configuration, that is involving both second and third order wire-bracket interactions (3,5,6). However, such an assumption might not reveal the actual nature of the appliance.…”

Emprego racional da Biomecânica em Ortodontia: "arcos inteligentes"

“…Originava-se, deste modo, o arco de retração contínuo -cogumelo de CNA (Mushroom Loop) 28 ( Fig. 34A), com bordas arredondadas, pré-fabricado, que pode utilizar os princípios do V assimétrico 11,31,33 . Este arco não requer reativações freqüentes, propiciando forças leves e biológicas, visto que desenvolve baixos níveis de força com grandes ativações, com proporção carga-deflexão diminuída e, portanto, requer menor solicitação da ancoragem posterior dos dentes envolvidos na mecânica de retração.…”