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Related Experiment Videos

The influence of fixed splints on mandibular flexure

B M Fischman

    The Journal of Prosthetic Dentistry
    |June 1, 1976
    PubMed
    Summary

    Fixed splints reduce jaw flexure by limiting bone movement, not just tooth movement. More extensive and rigid splints offer greater inhibition of mandibular flexure during jaw opening.

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    Area of Science:

    • Dental Mechanics
    • Biomechanics
    • Orthodontics

    Background:

    • Mandibular flexure, or jaw bending, occurs during forceful jaw opening.
    • The extent to which dental splints limit this flexure is not fully understood.
    • Understanding splint efficacy is crucial for prosthodontic and orthodontic treatments.

    Purpose of the Study:

    • To quantify mandibular flexure with different fixed splints.
    • To determine the mechanisms by which splints affect mandibular flexure.
    • To assess the influence of splint extent and rigidity on flexure inhibition.

    Main Methods:

    • Measurement of mandibular flexure during forced jaw opening.
    • Utilized various fixed dental splints.
    • Analysis of flexure reduction attributed to tooth versus bony movement.

    Main Results:

    • All tested splints significantly reduced mandibular flexure.
    • Flexure reduction was partly due to limiting bony flexure, not solely tooth movement.
    • Extensive splints and those rigidly attached to more teeth showed greater flexure inhibition.

    Conclusions:

    • Fixed dental splints effectively limit mandibular flexure.
    • Splint efficacy is related to their extent and rigidity, impacting both tooth and bone.
    • These findings have implications for designing stabilizing dental prostheses.

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