Multifunctional Archwire for Bite Opening /certified fixed orthodontic courses by Indian dental academy


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Multifunctional Archwire for Bite Opening /certified fixed orthodontic courses by Indian dental academy

  1. 1. Multifunctional Archwire for Bite Opening, Torquing, and Space Closure Reverse curve TMA with ‘T’ loops Wires Used (TMA) .016 X .O22 IN O.018 Slot .O17 X .025 IN O.018 & O.022 Slot .O19 X .O25 IN O.022 Slot Available in 6 different anterior lengths measuring from distal of lateral incisors.
  2. 2. Reverse Curve TMA with T loop
  3. 3. Shape and configuration of arch wire The “T” loop TMA archwire could be more accurately described as an asymmentrcal “T” loop as the distal extension of the loop is one third longer than the mesial. This asymmentrical design allows us to create step-up from cuspids to the incisors, to help in intrusion. Bite opens rapidly of upto 8-10mm in 3-4 months.
  4. 4. Pre-placement arch wire activation Activate the “T” LOOP by pinching the anterior portion of the loop closed & opening the distal extension of the loop. The step up created in the archwire can be from 1-5mm depending on the bite opening desired. Place anterior section first, then posterior. Activation by pulling the distal extension through the molar tubes which activates 2mm of the vertical legs of the “T” loop for closing space.
  5. 5. Intraoral torque adjustments Torque can be placed in the anterior section, while arch wire is completely engaged. Two methods: 1. Pinch the horizontal portion at the top of the “T” Loop using small optical plier, to place a gabling torque of upto 30degrees in the anteriors. 2. Pinching the anterior vertical leg of the “T” Loop to allow full torque expression and closing the spaces. Curve in the archwire extrudes premolars and helps bite opening. Useful in ceramic brackets as they won’t fracture as in continuous wire during torque bends.
  6. 6. Asymmet "T" archwire made of TMA wire, with 5mm vertical step, 2mm anterior loop, and 5mm posterior loop. Loop bent into preformed TMA archwire with rounded end of small optical plier. Preactivation of Asymmet "T" loop. A. Short mesial loop compressed. B. Long distal loop opened. C. Loop after preactivation.
  7. 7. A. Reverse curve of Spee accentuated with Hollowshop arch-contouringw plier. e. Distal end curved outard to allow easy insertion into prerotated molar tubes. C. Final contour of archwire before preactivation Intraoral activation made with inverted optical plier at top of loop. Gable bend opens loop at base and adds torque, thus advancing and intruding incisors Intraoral activation placed in mesial vertical step. Base of loop is still relatively closed, allowing addition of torque without affecting space closure
  8. 8. Thank you Leader in continuing dental education