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Invisible Orthodontics: Clinical Overview and Biomechanical Principles
Invisible orthodontics refers to a category of dental treatments designed to correct malocclusions (misalignments) using appliances that are either transparent or concealed from view. These systems prioritize aesthetic discretion while maintaining the mechanical force necessary for tooth movement.
1. Primary Modalities of Invisible Treatment
Orthodontic systems that offer reduced visibility are generally classified into three distinct technical categories:
Clear Aligner Therapy (CAT): These are removable, custom-fitted splints made from transparent thermoplastic polymers (such as polyurethane). They enclose the entire dental arch and apply sequential pressure to specific teeth.
Lingual Braces: This is a fixed system where brackets and archwires are bonded to the lingual (tongue-side) surface of the teeth. This placement makes the appliance completely invisible from a frontal view.


