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Alveolar bone loss in overdentures: a 5-year study.

R J Crum, G E Rooney

    The Journal of Prosthetic Dentistry
    |December 1, 1978
    PubMed
    Summary
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    Complete maxillary dentures with mandibular overdentures preserve more jawbone than full dentures in both jaws over five years. This finding is crucial for long-term oral health and denture stability.

    Area of Science:

    • Dentistry
    • Prosthodontics
    • Oral Surgery

    Background:

    • Alveolar bone loss is a common complication following tooth extraction and tooth replacement with conventional dentures.
    • Maintaining vertical bone height is critical for the long-term success of prosthetic rehabilitation and patient quality of life.

    Purpose of the Study:

    • To compare the vertical alveolar bone reduction in the mandible over five years between patients receiving complete maxillary dentures with mandibular overdentures and those receiving complete maxillary and mandibular dentures.

    Main Methods:

    • A 5-year prospective clinical study was conducted.
    • Participants were divided into two groups based on their prosthetic treatment: complete maxillary and mandibular overdentures versus complete maxillary and mandibular dentures.
    • Vertical alveolar bone height was measured at baseline and at the 5-year follow-up.

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    Main Results:

    • Patients treated with complete maxillary dentures and mandibular overdentures exhibited significantly less vertical alveolar bone reduction in the mandible compared to patients treated with complete maxillary and mandibular dentures.
    • The difference in bone reduction between the two groups was statistically significant.

    Conclusions:

    • Mandibular overdentures, when used with complete maxillary dentures, offer a superior method for preserving vertical alveolar bone compared to complete dentures in both jaws.
    • This prosthetic approach may lead to improved long-term outcomes and patient satisfaction in complete denture wearers.