Expansion or extraction in orthodontics?

a. History. From the Angle and Tweed paradigm to Damon paradigm.

b. Fastbraces or fastwires? 

c. Clinical evaluation and criteria to take a decision.

d. How to diminish the number of extractions in your practice?

e. Dentoalveolar growth, quality of alloys and new bracket design.

f. Dental and skeletal expansion.

g. Control of the Friction tooth-by-tooth.

h. Mechanical Orthostripping. Protocols for you and me.