Miniscrews: protocol and mechanics for treatment of Class II malocclusions

Abstract

Miniscrews are the most important recent innovation in orthodontics and have won a place, we believe, in the routine appliance design of everyday orthodontic practice. They are, we think primarily applicable in the treatment of the most prominent feature of the malocclusions orthodontists regularly confront, an antero-posterior discrepancy. Accordingly we discuss the protocol for full banded and bonded Class II mechanotherapy with miniscrew anchorage for:• Global arch or anterior sectional displacement;• Direct or indirect mechanics;• Sliding or loop mechanics. We then demonstrate clinical procedures: placement of miniscrews, static and mobile sectors, strengthening sectorial anchorage, active forces, and space management.Next we analyze the mechanics of treating complex cases with vertical as well as antero-posterior problems.Throughout the article we illustrate the text with sketches and clinical records. KEYWORDS Mini-implantsClass II therapy Protocol for use of mini-implants.