Signs of wear and damage
Cracks, splits, holes, chew marks and thin spots are all reasons to replace a guard. A guard that has been left in heat can warp without any visible tear.
Don't glue, trim or reshape a damaged guard yourself.
How long does a sports mouthguard last?
The Australian Dental Association says a guard that is well looked after can last several seasons once you've stopped growing, so replace yours when it cracks, thins or stops fitting. Players under 18 need a new one each year.
In a 2025 Australian study, junior footballers' guards had turned rough after one season, and rough surfaces held about eight times as much bacteria. Go by the guard's condition and fit, not its age alone.
How often should kids replace a mouthguard?
Plan on a new guard every year until your child turns 18. New adult teeth and growing jaws change the shape the guard was made for, so children and teenagers need their guard checked each season.
Our Light guard, for 15 and under, is $230.
When the fit changes
A guard that feels loose, tight or rubs, or that you have to bite down to keep in, may no longer match your teeth. New adult teeth, braces, fillings, crowns and other dental work can all change the fit.
How to make your mouthguard last longer
Clean it after every use, dry it, and keep it cool. Rinse it in cold water, brush it with mild liquid soap and a soft brush, and let it air dry before it goes in a rigid, vented case.
Keep it out of hot water, direct sun and hot cars, which can warp it. Don't chew on it, and keep it away from pets.
How long does a night guard last?
A night guard lasts until it no longer fits, or it bends, wears through or breaks. The Australian Dental Association says that is when a splint needs replacing, and that dental work such as a crown can mean it needs adjusting or replacing.
We make night guards for $400 at the same time as a sports mouthguard, from the same scan.
Reordering from your saved scan
We keep scans on file. If your teeth and bite have not changed, the team can check whether your scan is suitable for a replacement. Growing teeth, orthodontic treatment or dental work may mean a new scan is needed.
When you contact us, tell us roughly when we last scanned you and whether you have had dental work since.
Timing before the season
Check your guard before preseason training starts. If you need a new one, allow 7 to 10 working days after your scan.
