1. Andrews, L. “The Six Keys to Normal
Occlusion.” AJO-DO, Sept. 1972,
2. Frankel, R. “The Practical Meaning of
the Functional Matrix in Orthodontics.”
Transactions of the European Orthodontic
Society 45 (1969): pp. 207–219.
3. Moss, M. “The Functional Matrix”
(chapter), Vistas in Orthodontics.
Lea and Fibiger, 1962.
4. Barron, T., and Bogdan, F. “A Practical
Treatment Objective: Alveolar Bone
Modeling With a Fixed, Continuous-
Arch Appliance.” Clinical Impressions,
20:1, Summer 2017.
Dr. Frank Bogdan is a paid consultant
for Ormco. After treating patients for
many years at his practice in New
Jersey, Bogdan focused on teaching
the next generation of orthodontists,
which allowed him to travel
and make friends across the world.
He has since retired from orthodontic
practice and moved to Florida,
where he lives with his wife, Diane.