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A protocol for improved stability with Herbst appliance treatment for adults
David F Austin1, A Chaiyongsirisern, Yanqi Yang
1Faculty of Dentistry, the University of Hong Kong, Prince Philip Dental Hospital, 34 Hospital Road, Hong Kong.
Objective:
To present a treatment protocol for improved stability with Herbst appliance treatment in Class II adult cases.
Materials And Methods:
Sixteen Class II adults were treated at the University of Hong Kong with two phase treatment. The treatment protocol which leads to good stability was presented.
Results:
The protocol leading to stable correction of overjet, molar relationship and enhanced forward positioning of the mandible involved 12 months Herbst appliance treatment with stepwise advancement followed by fixed appliance.
Conclusions:
The long term stability of Herbst appliance treatment is influenced by the treatment protocol employed. Based on the stability of the adult group in the present study, it is recommended to treat for 12 months in a step-wise manner for mandibular advancement with over correction.
