Why is mandibular advancement with aligners better?

The literature is consistent in the results of mandibular advancement with aligners, indicating that this offers better results than those achieved with functional appliances.

Although the evidence is limited, practically all of it points to the same aspect: while the classic appliance achieves advancement with a marked lower dentoalveolar proinclination component, aligners manage to control the final position of the lower incisor well.

This may be due to several possible issues with aligners and not with functional aligners:

  • Perform transverse development that helps to avoid proinclination, through the loss of arch depth.
  • Perform anterior or posterior stripping to help avoid this proinclination.
  • The existence of plastic on the vestibular side of the crown of the incisors, which helps to avoid excessive proinclination.

In any case, based on these advantages, it is convenient to consider aligners as the treatment of choice in cases of mandibular advancement in children's patients, since, on the other hand, they allow achieving results identical to those of any other system.

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