Circumpubertal skeletal Class II patient treated using herbst functional appliance an comprehensive fixed mechanotheraphy

Abstract

Skeletal classII div I malocclusion are common orthodontic problem due to mandibular deficiencies. This problem could be addressed by stimulating sagittal mandibular growth by using functional and fixed functional appliance which can be used during pre and post pubertal growth period. Herbst appliance being rigid fixed functional appliance is beneficial in treatment of post pubertal skeletal class II patients and does not depend on patients compliance. A female patient of age 12 years with post pubertal growth status by 6 months, reported to the department of orthodontics. On extraoral examination she had a convex profile with retrognathic mandible and everted lower lip. Intraoral examination revealed class II molar relationship and end on canine relationship on both side, over jet of 7 mm and overbite of 4 mm. Since patient was post pubertal by 6 months growth modulation procedure was carried out with Herbst appliance for a period of 8 months followed by fixed appliance therapy for one year 4 months to correct the dento alveolar problems. Post treatment results showed that combination of Herbst and fixed mechanotheraphy using 0.022 slot was effective in the treatment of skeletal and dental irregularities in a short period of time.