Related Experiment Videos
Tweed-Merrifield sequential directional force nonpremolar extraction treatment: a case report
Seminars in Orthodontics
|December 1, 1996
Abstract:
The treatment of a Class II, Division 1 malocclusion without the extraction of premolars is, in many situations, the best solution for the patient. Nonpremolar extraction diagnosis followed by mechanotherapy with a nontorqued, nonangulated .022 edgewise appliance and the "Twelve-Two" System of Sequential Directional Force application is described.