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Dimensional stability of temporary restoratives.

J A Gilles, E F Huget, R C Stone

    Oral Surgery, Oral Medicine, and Oral Pathology
    |December 1, 1975
    PubMed
    Summary
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    Thermal cycling significantly impacts temporary dental restorative dimensional stability, particularly with water content. Cavit demonstrated superior stability compared to zinc oxide-eugenol and gutta-percha temporary fillings during thermal stress.

    Area of Science:

    • Dental Materials Science
    • Biomaterials Engineering
    • Restorative Dentistry

    Background:

    • Temporary dental restorations are crucial for maintaining tooth function and integrity between appointments.
    • Understanding the dimensional stability of these materials under environmental stresses is vital for clinical success.
    • Factors like water absorption and temperature fluctuations can compromise the fit and longevity of temporary fillings.

    Purpose of the Study:

    • To investigate the impact of thermal cycling on the dimensional stability of commonly used temporary dental restorative materials.
    • To compare the linear dimensional changes of Cavit, zinc oxide-eugenol cements, and gutta-percha temporary stopping under simulated oral conditions.

    Main Methods:

    • Specimens of Cavit, zinc oxide-eugenol cements, and gutta-percha temporary stopping were prepared.

    Related Experiment Videos

  • Materials underwent controlled thermal cycling simulating intraoral temperature variations.
  • Linear dimensional changes were precisely measured before and after thermal exposure.

    • Main Results:

    • Water content was identified as a significant factor influencing the dimensional stability of temporary restoratives.
    • Cavit exhibited significantly less linear dimensional change compared to the other tested materials after thermal cycling.
    • Zinc oxide-eugenol cements and gutta-percha temporary stopping showed greater dimensional instability.

    Conclusions:

    • Cavit offers superior dimensional stability under thermal cycling conditions compared to zinc oxide-eugenol and gutta-percha temporary materials.
    • Material selection for temporary restorations should consider water content and potential for dimensional change due to thermal fluctuations.
    • These findings have implications for improving the longevity and clinical performance of temporary dental fillings.