Appliances showing secure force control for lingual movement of incisors and buccal movement of canines and premolars

Abstract

control. The principle of force application is positive, mild and constant in character. The mechanism is free from the numerous auxiliary attachments characteristic of most appliances. It is, therefore, comfortable to the patient and easy to keep clean. A case from practice will be used to illustrate the construction, application and manipulation of the appliances. The patient was a girl twelve years of age. Sectional modeling compound impressions were taken and casts completed (Fig. 1). Classification was neutroclusion. Changes indicated in the maxillary arch were buccal move-