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Article: Volume 48 Number 7 Page 579 - July/August 2021

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  Dent Update 2021; 48: 579-583

Orthodontics:  The twin-block appliance for correction of Class II division 1 malocclusion

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Abstract: The twin-block appliance is a widely used functional appliance for the correction of Class II division 1 malocclusion in growing children and adolescents. This article outlines the indications and case assessment, the steps in clinical management and appliance design. Evidence regarding the mode of action, effects and prediction of treatment outcome of the twin-block appliance for Class II division 1 malocclusion are also presented.

Clinical relevance: The twin-block appliance is a widely used functional appliance in the UK for the correction of Class II division 1 malocclusion in growing children and adolescents.

Author notes: Erfan Salloum, BDS, PG Cert(Orth), MFDRCSI, MFDSRCPS(Glag), DClinDent(Orth), MOrthRCSEd, FFDRCSI(Orth), IMOrthRCSEng, Specialist Orthodontist, Dublin Orthodontics, Dublin, Ireland. Declan T Millett, BDSc, DDS, FDSRCPSGlasg, FDSRCSEng, DOrthRCSEng, MOrthRCSEng, FHEA, Professor of Orthodontics, Oral Health and Development, Cork University Dental School and Hospital, University College Cork, Ireland. Grant T McIntyre, BDS, FDSRCPSGlasg, MOrthRCSEd, PhD, FDSRCPSGlasg(Orth), FHEA, FDSRCSEd, FDTFed, Consultant/Honorary Professor, Dundee Dental Hospital and School, Dundee, UK. email: erfan_salloum@live.com

Objective: To outline the indications and case assessment, the steps in clinical management and appliance design for twin-block appliances.

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