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Related Experiment Videos

A study of temperature changes occurring in setting dental cements.

S Crisp, M A Jennings, A D Wilson

    Journal of Oral Rehabilitation
    |April 1, 1978
    PubMed
    Summary

    Dental cements generate heat during setting. Zinc oxide and phosphate-bonded cements produce more heat than ion-leachable glass and polycarboxylate cements, respectively, impacting clinical use.

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    Area of Science:

    • Dental Materials Science
    • Biomaterials Chemistry

    Background:

    • Dental cements are crucial in restorative dentistry.
    • Understanding their exothermic setting reactions is vital for clinical success and patient safety.
    • Current knowledge on the comparative heat evolution of different cement types is limited.

    Purpose of the Study:

    • To investigate the temperature rise during the setting of various dental cements.
    • To correlate the exothermic properties with the underlying chemistry of different cement systems.
    • To provide insights relevant to dental material specifications and clinical application.

    Main Methods:

    • Experimental measurement of temperature changes during cement setting.
    • Analysis of cement chemistry, focusing on ion-leachable glasses, zinc oxide, polycarboxylate, and phosphate-bonded systems.

    Main Results:

    • Zinc oxide cements exhibit higher exothermic reactions compared to ion-leachable glass cements.
    • Phosphate-bonded cements generate more heat during setting than polycarboxylate cements.
    • The observed temperature variations are directly linked to the specific chemical reactions within each cement type.

    Conclusions:

    • The chemistry of dental cement systems dictates their exothermic setting behavior.
    • Differences in heat evolution have implications for material selection and handling in clinical practice.
    • Further research can refine material specifications based on thermal properties.

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