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Morphologic changes in the transverse dimension using the Fränkel appliance.

A H Owen

    American Journal of Orthodontics
    |March 1, 1983
    PubMed
    Summary

    The Fränkel appliance may offer a significant increase in arch length for treating dental crowding. This early orthodontic intervention shows promising results for improving transverse dimensions in growing patients.

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    Area of Science:

    • Orthodontics
    • Craniofacial Development
    • Dental Arch Dimensions

    Background:

    • Malocclusion, particularly dental crowding, is increasing with urbanization.
    • Early orthodontic interventions aim to minimize maldevelopment.
    • The Fränkel appliance is a functional regulator used for palatal expansion.

    Observation:

    • Fifty patients (ages 5.9-13.8) treated with the Fränkel appliance were analyzed.
    • Cephalometric measurements assessed nasal cavity width, maxillary width, mandibular width, intercanine width, and intermolar width.
    • Control data from 40 children (ages 8-13) were used for comparison.

    Findings:

    • The Fränkel appliance treatment resulted in statistically significant increases in all five measured transverse dimensions.
    • All five cephalometric measurements were simultaneously significant at the 0.05 level.
    • The Fränkel appliance appears to induce a limited, yet significant, increase in arch length.

    Implications:

    • The Fränkel appliance shows potential for benefiting patients with dental crowding by increasing arch length.
    • Further research is needed to confirm the long-term stability of these results.
    • This appliance merits consideration in early orthodontic treatment strategies for arch development.

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