Management of Class II Hyperdivergent Malocclusion with Mandibular Retrognathia in Adolescent Patient Using Clear Functional Appliance: A Case Report

doi:10.12337/zgkqjxjyzz.2025.02.006

Chinese Journal of Stomatological Continuing Education ›› 2025, Vol. 28 ›› Issue (2): 96-107.DOI: 10.12337/zgkqjxjyzz.2025.02.006

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Management of Class II Hyperdivergent Malocclusion with Mandibular Retrognathia in Adolescent Patient Using Clear Functional Appliance: A Case Report

Sihang Chen^1,2,#, Jingwen Cai^1,2,#, Linxin Chen^1,2, Zhenling Wang^1,2, Qinqi Yu^1,2, Linyu Xu^1,2,*

¹Key Laboratory of Oral Diseases Research, Fujian Province, P.R. China;
²Department of Orthodontics, Fujian Medical University Affiliated Stomatological Hospital, Fujian Province, P.R. China.

Published:2025-03-31
Contact: ^*Linyu Xu. Tel: 0591-87621505. Email: xlyyydentist1042@163.com. Address: No. 246, Yangqiao Middle Road, Gulou District, Fuzhou 350002, Fujian Province, P.R. China
About author:^#These authors contibute equal to this manuscript.

Abstract

Abstract: Objective: This case report presents a patient with skeletal ClassⅡ high-angle retrognathic mandible, exploring the application and effects of clear functional appliances in mandibular advancement and occlusal adjustment. Diagnosis and treatment: The patient was a 9-year-old female, complaining of “irregular teeth and protruding mouth” for several years, diagnosed with skeletal ClassⅡ. In the first phase, clear functional appliances were used for mandibular advancement to promote forward growth of the mandible. In the second phase, standard clear aligners were used for occlusal adjustment. Results: After treatment, the position of the lower anterior teeth and the vertical height of the posterior teeth were effectively controlled, with significant improvement in lateral profile and occlusal relationship. Conclusions: Invisible functional orthodontic appliances promote the forward growth of skeletal Class II high angle retrognathia in adolescents, improve facial profile and bite relationship, and have unique advantages.

Key words: early intervention, clear aligners, skeletal Class II, high-angle facial profile, mandibular retrognathia

Sihang Chen, Jingwen Cai, Linxin Chen, Zhenling Wang, Qinqi Yu, Linyu Xu. Management of Class II Hyperdivergent Malocclusion with Mandibular Retrognathia in Adolescent Patient Using Clear Functional Appliance: A Case Report[J]. Chinese Journal of Stomatological Continuing Education, 2025, 28(2): 96-107.

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Management of Class II Hyperdivergent Malocclusion with Mandibular Retrognathia in Adolescent Patient Using Clear Functional Appliance: A Case Report

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