Orthodontic miniscrews, or Temporary Anchorage Devices (TADs), are most commonly associated with facilitating controlled tooth movements like distalization. However, they also play a crucial role in preventing unwanted distal movement in specific treatment scenarios. In complex orthodontic cases, such as space closure, midline correction, or anchorage reinforcement for anterior retraction, maintaining precise control over tooth movement is essential. Miniscrews serve as fixed anchorage points that can resist the reactive forces that would otherwise lead to undesirable distalization of anchor units, such as molars or premolars.
For example, in cases where anterior teeth are being retracted after premolar extractions, there is a natural tendency for posterior teeth to drift mesially (forward) or for the anterior segment to retract less efficiently due to anchorage loss. By strategically placing miniscrews near the posterior teeth, orthodontists can anchor these segments, ensuring that the retraction forces are fully expressed on the anterior teeth while the posterior teeth remain stationary. This is particularly valuable in non-extraction treatments that rely heavily on preserving the posterior occlusion and facial profile.
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