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Related Experiment Videos

[Marginal cleft and solubility].

H Schwickerath

    Deutsche Zahnarztliche Zeitschrift
    |September 1, 1979
    PubMed
    Summary

    Dental cement seams widen and deepen with increased interval width, potentially accelerating cement caries. Zinc-oxide-phosphate cements show minimal substance loss, unlike carboxylate and EBA cements.

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    Area of Science:

    • Dental Materials Science
    • Cariology
    • Restorative Dentistry

    Context:

    • Dental cements are crucial for prosthetic restorations and orthodontic appliances.
    • Understanding cement behavior under oral conditions is vital for long-term restoration success.
    • Caries affecting cement-seam interfaces presents a unique clinical challenge.

    Purpose:

    • To investigate the impact of interval width on cement seam dimensions.
    • To evaluate the susceptibility of different dental cements to substance loss.
    • To compare the degradation patterns of various cement types under simulated cariogenic conditions.

    Summary:

    • Increasing the interval width of dental cement seams by 0.1 mm resulted in an average depth increase of 0.067 mm.
    • Cement seams located below the gingival cuff exhibited less substance loss.
    • Laboratory tests indicated minimal substance loss for zinc-oxide-phosphate cements, distinct shrinkage for carboxylate cements, and the greatest loss for EBA cements.

    Impact:

    • Findings suggest that wider cement intervals may predispose restorations to faster cement caries progression.
    • The study highlights differential material degradation among common dental cements, informing material selection.
    • Results aid clinicians in predicting restoration longevity and managing cement-related complications.

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