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Related Experiment Videos

[Experimental caries lesions under composite resins].

K H Ott

    ZWR
    |March 1, 1989
    PubMed
    Summary

    This study found that Bowen composite restorations on healthy enamel showed excellent resin integrity despite significant dentin demineralization. However, hazardous regions like fissures may still be prone to caries beneath these fillings.

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    Area of Science:

    • Dental Materials Science
    • Cariology
    • Biomaterials

    Context:

    • Investigating the clinical performance of Bowen composite restorations.
    • Evaluating the potential for secondary caries formation around resin restorations.
    • Assessing the effect of demineralization challenges on restorative materials.

    Purpose:

    • To evaluate the durability and cariogenic potential of Bowen composite restorations placed on healthy enamel without cavity preparation.
    • To determine the influence of an alkaline buffer solution on demineralization progression.
    • To identify areas susceptible to caries development under Bowen composite fillings.

    Summary:

    • Extracted teeth with small Bowen composite restorations were subjected to artificial caries induction using lactic acid.
    • Significant dentin demineralization occurred, while the composite resin remained intact.
    • An alkaline buffer solution only slowed, rather than prevented, demineralization in both dentin and enamel.

    Impact:

    • Bowen composite restorations demonstrate good marginal integrity in a simulated cariogenic environment.
    • Specific tooth regions, such as fissures and cervical areas, remain at risk for caries initiation under these restorations.
    • Findings highlight the importance of considering tooth anatomy and location when assessing restoration longevity and caries risk.

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