Correction of Deep Overbite by Using a Modified Nance Appliance in an Adult Class II Division 2 Patient with Dehiscence Defect

Zhujun Li; Zhengxi Chen; Jian Sun; Li’an Yang; Zhenqi Chen

doi:10.1155/2018/9563875

Case Reports in Dentistry (Jan 2018)

Correction of Deep Overbite by Using a Modified Nance Appliance in an Adult Class II Division 2 Patient with Dehiscence Defect

Zhujun Li,
Zhengxi Chen,
Jian Sun,
Li’an Yang,
Zhenqi Chen

Affiliations

Zhujun Li: Department of Orthodontics, Shanghai Ninth People’s Hospital, School of Stomatology, Shanghai Key Laboratory of Stomatology, Shanghai Jiao Tong University, Shanghai, China
Zhengxi Chen: Department of Orthodontics, Shanghai Ninth People’s Hospital, School of Stomatology, Shanghai Key Laboratory of Stomatology, Shanghai Jiao Tong University, Shanghai, China
Jian Sun: Department of Stomatology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
Li’an Yang: Department of Stomatology, Xin Hua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai Jiao Tong University, Shanghai, China
Zhenqi Chen: Department of Orthodontics, Shanghai Ninth People’s Hospital, School of Stomatology, Shanghai Key Laboratory of Stomatology, Shanghai Jiao Tong University, Shanghai, China

DOI: https://doi.org/10.1155/2018/9563875
Journal volume & issue: Vol. 2018

Abstract

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A modified Nance Appliance (MNA) is introduced as a treatment option for an adult class II division 2 malocclusion (CII/2) patient with deep overbite and dehiscence on the facial root surface of retroclined upper incisors through the cone-beam computed tomography (CBCT). Indications for this modified MNA as well as a brief description of fabrication procedure and biomechanical analysis of the treatment effects are shown in detail. Root control and absolute intrusion without enlarging the bony defect were achieved. The treatment results were satisfying and favorable.

Published in Case Reports in Dentistry

ISSN: 2090-6447 (Print); 2090-6455 (Online)
Publisher: Wiley
Country of publisher: United Kingdom
LCC subjects: Medicine: Dentistry
Website: https://onlinelibrary.wiley.com/journal/2415

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