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Related Experiment Videos

Maxillary traction splint: a cephalometric evaluation.

S F Caldwell, T A Hymas, T A Timm

    American Journal of Orthodontics
    |May 1, 1984
    PubMed
    Summary

    Orthopedic headgear with a maxillary traction splint effectively corrects Class II malocclusions by reducing overjet and inhibiting maxillary vertical growth. This treatment is beneficial for growing patients before fixed appliance therapy.

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    Area of Science:

    • Orthodontics
    • Craniofacial Growth

    Background:

    • Orthodontists seek to understand skeletal and dental changes from headgear treatment.
    • Dentoskeletal changes result from headgear, fixed appliances, and patient growth.

    Purpose of the Study:

    • To quantify skeletal and dental changes in Class II, Division 1 malocclusions treated with orthopedic headgear and a maxillary occlusal splint.
    • To differentiate treatment effects from natural growth changes.

    Main Methods:

    • Forty-seven patients with maxillary dentoalveolar protrusions and Class II, Division 1 malocclusions were treated.
    • A control group of fifty-two patients was used for growth comparison.
    • Lateral cephalograms were analyzed before and after treatment to quantify sagittal changes.

    Main Results:

    • Achieved Class I posterior occlusion with significant overjet reduction (average 4.24 mm).
    • Inhibited maxillary vertical growth and caused slight intrusion of maxillary teeth.
    • Reduced overbite by leveling the mandibular dentition without accelerating mandibular growth or significantly increasing the mandibular plane angle.

    Conclusions:

    • The maxillary traction splint is effective for correcting maxillary dentoalveolar protrusion in growing patients.
    • This approach is a valuable precursor to fixed appliance therapy for detailed occlusion and tooth alignment.

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