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Related Experiment Videos

Perception of vertical dimension

J A Gamon, S M Wright

    Journal of Oral Rehabilitation
    |July 1, 1982
    PubMed
    Summary
    This summary is machine-generated.

    Researchers studied the preferred vertical dimension of occlusion (PVDO) in edentulous adults. Findings suggest PVDO is consistent, but comfortable zone width varies, with most values aligning with clinical acceptability.

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    Area of Science:

    • Dentistry
    • Biomedical Engineering
    • Dental Prosthetics

    Background:

    • Determining the optimal occlusal vertical dimension (OVD) is crucial for complete denture success.
    • Edentulous patients present unique challenges in establishing a stable and comfortable OVD.
    • Previous research indicates variability in patient perception and measurement of OVD.

    Purpose of the Study:

    • To investigate the preferred vertical dimension of occlusion (PVDO) in edentulous adults.
    • To assess the consistency and range of the comfortable zone around the PVDO.
    • To explore the relationship between dimensional discrimination ability and PVDO/comfortable zone determination.

    Main Methods:

    • Ten edentulous adults participated in the study.
    • A screw jack device was utilized to measure vertical dimension.

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  • Forced-choice and external approach methods were employed to determine PVDO.
  • Dimensional discrimination ability was assessed at and around the mean PVDO.

    • Main Results:

    • Both measurement methods yielded a consistent mean PVDO for each subject.
    • The width of the comfortable zone showed considerable inconsistency among participants.
    • Mean PVDO values were generally consistent with clinically acceptable occlusal vertical dimensions.
    • No correlation was found between dimensional discrimination ability and the determination of PVDO or comfortable zone.

    Conclusions:

    • The preferred vertical dimension of occlusion (PVDO) appears to be a stable parameter for edentulous individuals.
    • The comfortable zone width is less predictable and may vary significantly.
    • Current methods provide reliable PVDO estimates, aligning with clinical standards.
    • Further research may explore factors influencing comfortable zone variability.