I have 36 years of experience, and specialize in the field of academic and clinical orthodontics with specific knowledge in the areas of dento-facial development, interactive self-ligation and managment of impactions. I have published on such topics as over 200 publications. I have testified 50 times on topics such as invisalign, temporomandibular disorders (TMD) and root resorption. Over 35 years of experience in leadership positions in academic orhtodontics and research.