Biomechanics & Esthetics

Open Bite Correction in Different Types of Malocclusion

Kelvin Chang

1996 DDS degree from School of Dentistry, National Taiwan University, Taipei, Taiwan
2003 Certificate of orthodontic training, orthodontic department of National Taiwan University Hospital
2005 MS degree from Graduate Institute of Clinical Dentistry, National Taiwan University, Taipei, Taiwan
Dr. Kelvin Wen-Chung Chang is an adjunct clinical instructor of the orthodontic department at National Taiwan University Hospital since 2004. He held a private group practice center in Hsinchu, Taiwan in 2007. He is the chairman of academic committee of Taiwan Association of Orthodontists (2016-2020) and is an advisor of the World Implant Orthodontic Association since 2016. His interests focus on self-ligation system, TADs application, interdisciplinary treatment, aesthetic dentistry and digital orthodontics.
E-mail: kelvinwcchang@gmail.com

Lecture Description

The first step of treating open bite malocclusion is to determine whether the bite deformity is of dental or skeletal origin. With the assistance of skeletal anchorage devices, some skeletal open bite malocclusions can be treated without surgery. To improve the efficacy and efficiency for this clinical difficulty, it is crucial to differentiate where the offending site is: upper or lower; anterior or posterior. Then a solution of anterior extrusion or posterior intrusion can be delivered properly according to the relative dentoalveolar problems. Various mechanics design and applications of TADs will be introduced in this lecture.

Learning objective

Problem-oriented diagnosis and treatment planning.
Effective mechanics design for molar intrusion.