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Space Closure

  • Goals for any space closure method
    • Differential space closure capability
    • Axial inclination control
    • Control of rotation & arch width
    • Optimum biological response
    • Minimum patient cooperation
    • Operator convenience
  • Sliding mechanics¬† – movement of teeth along arch wire
    • The most significant diff. between standard edge wise mechanics & pre adjusted appliance is in stage of space closure.
    • In sd. Edgewise, rectangular wire could not effectively slide through bracket slots due to 1st, 2nd & 3rd order bends in arch wire
    • st. wire appliance allows for level bracket slot lined up & arch wire can more effectively move through bracket slots. allows effective sliding of canine along arch wire

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