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Related Experiment Videos

Initial acidity of dental cements.

D Brune, D M Evje

    Scandinavian Journal of Dental Research
    |April 1, 1984
    PubMed
    Summary

    Infrared radiation treatment significantly reduces acid release from dental cements like silicate and glass ionomer. This method lowers acidity, minimizing pulpal injury risk and improving cement aesthetics.

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    Area of Science:

    • Dental Materials Science
    • Biomaterials Engineering
    • Restorative Dentistry

    Background:

    • Dental cements are crucial in restorative procedures.
    • Understanding cement acidity and its clinical implications is vital.
    • Glass ionomer, silicate, zinc phosphate, and zinc polycarboxylate cements have varying properties.

    Purpose of the Study:

    • To quantify the acidity of different dental cements.
    • To investigate the effect of infrared radiation on cement acidity.
    • To assess the potential clinical benefits of infrared treatment.

    Main Methods:

    • pH measurements were used to assess acidity in aqueous solutions.
    • Four types of dental cements were studied: glass ionomer, silicate, zinc phosphate, and zinc polycarboxylate.
    • Cements were set at 23°C and 23-60°C with infrared radiation exposure.

    Main Results:

    • Silicate cements exhibited the highest acidity; zinc polycarboxylate cements showed the lowest.
    • Infrared radiation exposure reduced acidity in all cement types.
    • Silicate cement acidity decreased tenfold; glass ionomer and zinc phosphate showed significant reductions.

    Conclusions:

    • Infrared radiation treatment can substantially reduce pulpal injury risk from silicate restorations.
    • This technique may mitigate initial erosion in glass ionomer cements.
    • Infrared treatment enhances the aesthetic appearance of glass ionomer and silicate cements.

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