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Related Experiment Videos

Structural dentofacial variations in maxilla expansion.

G Bertelè1, M Mercanti, F Stella

  • 1University of Verona, Chair of Orthognathodontics.

Minerva Stomatologica
|August 4, 1999
PubMed
Summary
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Palatal expansion techniques impact vertical dimension changes in the craniofacial middle third. Surgically assisted expansion is most effective for adults with maxillary transversal deficiencies.

Area of Science:

  • Orthodontics
  • Craniofacial Surgery
  • Dentofacial Orthopedics

Background:

  • Controlling vertical dimension is crucial for patients needing maxillary transversal correction.
  • Improper management can exacerbate long-face syndrome.
  • This study examines vertical dimension changes from palatal expansion, considering technique and age.

Purpose of the Study:

  • To analyze vertical dimension changes in the craniofacial middle third due to palatal expansion.
  • To compare different palatal expansion techniques (elastic, stiff, surgically assisted).
  • To evaluate the influence of patient age on treatment outcomes.

Main Methods:

  • Comparison of three expansion groups: orthopedic (infantile age), orthopedic (adult age), and surgically assisted expansion.

Related Experiment Videos

  • Surgically assisted expansion involved a Hyrax-type appliance combined with bilateral zygomatic buttress corticotomy.
  • Cephalometric analysis was used to evaluate craniofacial middle third dimension changes post-treatment.

    • Main Results:

    • Orthopedic expansion in young patients and surgically assisted expansion yielded similar vertical dimension increases.
    • Orthopedic expansion in adults resulted in more substantial vertical dimension increases.
    • Surgically assisted expansion demonstrated effectiveness in correcting maxillary transversal deficiencies.

    Conclusions:

    • Surgically assisted expansion is considered more effective and physiological for correcting maxillary transversal deficiencies in adults.
    • The choice of palatal expansion technique should consider patient age and specific orthodontic needs.