Sposoby trakcji podniebiennie zatrzymanych kłów szczęki – przegląd piśmiennictwa
When reviewing the literature there are no unitary recommendations for the optimal force level for the traction of impacted teeth – many authors recommend using of light forces (ca. 60 grams) [3, 41-43]. Excessive force application should be avoided to prevent areas of hyalinization. Orthodontic traction application soon after surgical exposure is reasonable.
In the beginning the main movement direction of the displaced tooth should be following its long axis, regardless of whether it will occur far from the correct position, because the simple lateral traction of the tooth toward the edentulous alveolar ridge finds immediate resistance due to the compression of the canine crown against the adjacent palatine bone [44]. The choice of traction technique depends on desired traction direction. Cantilever springs produce forces on the impacted teeth in all three planes of space, but the main forces are vertical (extrusive) and labiolingual (by pulling the teeth into the dental arch). Major advantage is the ability to control the magnitude and direction of the force they produce. By generating a constant optimal force, they help to avoid deleterious effects on the surrounding periodontium and the need for frequent reactivation. Elastomeric modules are quite easy to apply and cheap. Their disadvantage is the rapid decrease in the forces they generate, hence the need for frequent activations. By placing the TISAD in the right place, it is possible to generate force in the desired direction (assuming there is no anatomic obstruction).
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