Growth modification using a modified C-palatal plate in a patient with a Class II hyperdivergent relationship with arthrogryposis multiplex congenita

Authors

Jaehyun Kim, Department of Orthodontics, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea
Jae Hyun Park, Arizona School of Dentistry and Oral Health
Yoonji Kim, Department of Orthodontics, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea
Yoon-Ah Kook, Department of Orthodontics, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea
Nam-Ki Lee, Department of Orthodontics, Section of Dentistry, Seoul National University Bundang HospitalFollow

Document Type

Article

Publication Title

AJO-DO Clinical Companion

Abstract

Highlights

• A 9-year-old patient presented with a hyperdivergent Class II relationship.
• The patient also presented with arthrogryposis multiplex congenita.
• Two-phase treatment using a modified C-palatal plate was performed.
• It was effective in not only anteroposterior improvement but also in vertical control.

A 9-year-old male patient with arthrogryposis multiplex congenita (AMC) had a history of at least 2 joint contractures in multiple areas of his body. In addition, he had a dentoskeletal Class II malocclusion and a hyperdivergent growth pattern. He was successfully treated with growth modification using a modified C-palatal plate (MCPP) with a 2-phase treatment. An MCPP was applied 3 times throughout treatment, and the patient was observed from age 10 to 20 years. In phase 1, an MCPP was placed twice to induce the headgear effect in the maxilla. In phase 2, an MCPP and fixed appliances were used in the whole dentition to improve the dental Class II relationship and functional occlusion. Phase 1 occurred over 6 years and 9 months, whereas Phase 2 occurred over 20 months. Patient with a Class II hyperdivergent AMC relationship with micrognathia have shown improved anteroposterior discrepancy in dental and skeletal structures and effective vertical control using MCPPs. Therefore, clinicians should consider the application of MCPPs as a treatment modality for patients with a Class II growth modification in AMC.

First Page

117

Last Page

127

DOI

doi.org/10.1016/j.xaor.2023.12.006

Publication Date

4-2024

Comments

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Kim, J., Park, J. H., Kim, Y., Kook, Y., & Lee, N. (2024). Growth modification using a modified C-palatal plate in a patient with a Class II hyperdivergent relationship with arthrogryposis multiplex congenita. AJO-DO Clinical Companion, 4(2), 117-127.

https://doi.org/10.1016/j.xaor.2023.12.006

Recommended Citation

Kim, J., Park, J. H., Kim, Y., Kook, Y., & Lee, N. (2024). Growth modification using a modified C-palatal plate in a patient with a Class II hyperdivergent relationship with arthrogryposis multiplex congenita. AJO-DO Clinical Companion, 4(2), 117-127. https://doi.org/10.1016/j.xaor.2023.12.006