Display Mode:

    Main content

    Health Information

    Mouth Guards for Sports

    Mouth Guards for Sports

    Skip to the navigation

    Topic Overview

    Mouth guards are U-shaped pieces of plastic that fit between the upper and lower teeth, protectively molding around the upper teeth. Use of a mouth guard can prevent dental and jaw injury during sports. Dental injury may lead to misalignment of the teeth ( malocclusion ). Although some amateur sports, such as football, field hockey, ice hockey, lacrosse, and boxing, require the use of mouth guards, dentists recommend mouth guard use in any sport that may cause dental injury.

    Different types of mouth guards are available.

    • Preformed "stock" mouth guards offer some protection but are bulky and make talking and breathing difficult. These must be clenched between the teeth at all times. They are sold in most sporting goods stores and don't cost much.
    • "Boil-and-bite" mouth guards are a good choice for children who are losing and growing teeth and have an ever-changing bite. They are made of a thermoplastic material that softens when boiled and will then mold around the teeth when bitten down on. Boil-and-bite mouth guards are less bulky than stock guards, are typically more comfortable, and are not expensive. They are available in sporting goods stores.
    • Custom-fit mouth guards, made by a dentist, use thermoplastic material. These guards offer the best fit and comfort. But they are expensive.
    • Orthodontic treatment mouth guards (for braces and other appliances) are loose-fitting and protect the mouth from appliance-related injury during sports and other activities.

    Mouth guards are meant to protect the teeth and mouth. They don't prevent gradual tooth movement.

    Related Information


    ByHealthwise Staff
    Primary Medical Reviewer Adam Husney, MD - Family Medicine
    Specialist Medical Reviewer William F. Hohlt, DDS - Orthodontics

    Current as ofAugust 9, 2016

    Current as of: August 9, 2016

    This information does not replace the advice of a doctor. Healthwise, Incorporated, disclaims any warranty or liability for your use of this information. Your use of this information means that you agree to the Terms of Use. Learn how we develop our content.

    © 1995-2017 Healthwise, Incorporated. Healthwise, Healthwise for every health decision, and the Healthwise logo are trademarks of Healthwise, Incorporated.