Special Lecture

"Jaw-bone First" Class III Orthodontic Treatment with TADs

Eric Liou

Dr. Eric Liou is an associate professor in the Graduate Institute of Craniofacial Medicine of Chang Gung University, Taipei, Taiwan. He is also a visiting professor in the Department of Orthodontics, Showa University, Tokyo, Japan. For the profession affiliations, Dr. Liou, currently, is the President of the Asian Pacific Orthodontic Society and Editor in Chief of the APOS Trends in Orthodontics (2020-2025), Secretary General of the WIOA (2018-2020), and ECM representing the Central and East Asia in the World Federal of Orthodontists (2020-2025).

(His main clinical and research interests are in TADs, orthodontic tooth movement, surgical and non-surgical innovative approaches for canting, facial asymmetry, or Class III malocclusion in growing or non-growing patients. Dr. Liou has numerous presentations especially on the topics of Class III orthognathic camouflage treatment, treatment of occlusal cant and facial asymmetry with yin-yang arch wires, accelerated orthodontic tooth movement with PRP, maxillary orthopedic protraction, surgery first orthognathic approach, and TADs.)
E-mail: lioueric2042@gmail.com

Lecture Description

The aims of orthodontic treatment for Class III patients should be improvement of facial profile, jaw bone relation, and occlusion. Unfortunately, the current orthodontic techniques, either for growing or adult patients, mostly limit us in improvement of anteroposterior occlusion only. A new concept called "jaw bone first", similar to the concept of "surgery first" in surgical orthodontics, has been developing for the treatment of patients with Class III malocclusion by improving jaw bone relation and facial profile through bite raisers and intermaxillary elastics right at the beginning of orthodontic treatment. The bite raisers open the bite and rotate the mandible backward to mimic a Class I jaw bone relation so that the subsequent orthodontic treatment could be easier in establishing a Class I occlusion. TADs also could be applied for improving upper incisor show and smile arc through maxillary total arch extrusion, and/or for improving anterior cross bite through mandibular total arch distalization. The purpose of this presentation is to illustrate the rationales and appliances of this "jaw bone first" concept in treating adult or growing patients with Class III malocclusion.

Learning objective

To learn an innovative thought and orthodontic technique to improve the facial profile of either growing or adult Class III patients just like surgery first approach.