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Related Experiment Videos

An improved mouthguard material

B Westerman, P M Stringfellow, J A Eccleston

    Australian Dental Journal
    |June 1, 1997
    PubMed
    Summary
    This summary is machine-generated.

    A new polyvinyl-acetate-polyethylene (EVA) mouthguard material with air cells significantly reduces impact forces. This innovation offers improved protection for athletes compared to traditional EVA mouthguards.

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    Area of Science:

    • Materials Science
    • Biomedical Engineering
    • Sports Medicine

    Background:

    • Traditional mouthguards made from polyvinyl-acetate-polyethylene (EVA) copolymer offer limited protection against high-impact forces.
    • The need for enhanced protective equipment in sports necessitates the development of advanced materials.

    Purpose of the Study:

    • To develop and evaluate a modified EVA mouthguard material with improved force-reducing capabilities.
    • To assess the effectiveness of incorporating air cells into EVA mouthguards for impact absorption.

    Main Methods:

    • A novel EVA copolymer material was engineered to include air cells within its structure.
    • Impact tests were conducted on 4 mm thick modified EVA mouthguards and compared against traditional EVA mouthguards of identical thickness and composition.

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  • Force transmission under impact loads of less than 10 kN was measured.

    • Main Results:

    • The inclusion of air cells in the 4 mm EVA copolymer significantly reduced the effects of impacts.
    • The modified mouthguard material demonstrated a 32% reduction in transmitted forces compared to traditional EVA polymers.
    • The material proved suitable for stock, mouth-formed, and vacuum-formed mouthguard constructions.

    Conclusions:

    • The modified EVA mouthguard material with air inclusions exhibits superior elastic properties for impact force reduction.
    • This material offers enhanced protective qualities for athletes, outperforming conventional EVA mouthguards.
    • The air-cell technology presents a viable advancement for sports mouthguard design and effectiveness.