TRANSLATION ARCH
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The Translation Arch This is a kind of utility arch that can be used in Bioprogressive Therapy and similar techniques to simultaneously retract, torque, and intrude or control the extrusion of the maxillary incisors.
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The Translation Arch is made of .016" × .022" TMA for .018" bracket slots.
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This beta-titanium wire has a modulus of elasticity about two-fifths that of a stainless steel wire of the same dimensions. The lower modulus of elasticity provides three clinical advantages:
1. Greater working range. 2. Greater amount of preactivation possible,4 to achieve the moment-toforce ratio of 10 required for translatory movement.5,6 3. Simplified archwire design possible.
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Design
A. Translation Arch has anterior segment inserted into incisor brackets and two buccal segments inserted into gingival first molar tubes. B. Vertical loops between segments extend as far as possible. www.indiandentalacademy.com
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