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CORRECTION OF CLASS II MALOCCLUSION IN A LATE ADOLESCENT PATIENT WITH FORSUS
(FRD) APPLIANCE. A CASE REPORT

Makhbul MZM, Wan Hassan WN

Introduction: Fixed functional appliances are non-compliance dependent devices, which
can assist the correction of Class II malocclusion. The mechanics of the fixed functional
appliances may vary depending on the type of device used. We report the observed
biomechanical effects of using the ForsusTM Fatigue Resistant Device (FRD) fixed
functional appliance. Case report: A 14-year-old female presented with a Class II division I
malocclusion on a Class II skeletal base. The malocclusion was complicated by a 10mm
overjet and increased traumatic overbite. She was treated with the ForsusTM FRD
appliance worn for 5 months after the alignment with fixed appliances (0.022” X0.028”
MBT prescriptions) and finished on a non-extraction base. Conclusion: Dento-alveolar
changes were the main contribution to the correction of the malocclusion and
simultaneously improved the patient’s profile in the end of treatment. Hence, ForsusTM
FRD appliance can be suggested.

Keywords: Fixed functional appliance; Class II Division I malocclusion; Non-compliance device

Correction of Class II Malocclusion in a Late Adolescent Patient with Forsus (FRD) Appliance. A Case Report. Makhbul, M.Z.M,
Wan Hassan, W.N (2019). Ann Dent UM, 26 (1): 34-41.

Dr Mohd Zambri Mohamed Makhbul
Ortodontic Unit
Cahaya Suria Dental Clinic
Ministry Of Health
Kuala Lumpur Malaysia

Associate Professor Dr Wan Nurazreena Wan Hassan
Department of Paediatric Dentistry and Orthodontics
Faculty of Dentistry
University Of Malaya
Kuala Lumpur Malaysia

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