Custom-Fit or Boil-and-Bite Mouthguard: Which to Choose?
Custom-fit or boil-and-bite? It's the question every athlete asks before buying a mouthguard (or gum shield). Both options protect your teeth during contact sports, but they aren't made the same way, don't cost the same and aren't intended for the same use. Here is our comparison to help you make an informed choice.
The comparison at a glance
The custom-fit mouthguard — from €79.90
- Manufacturing: in the laboratory, from your dental impression (dental impression kit included)
- Fit: 100% adapted to your teeth, a stable hold with no play or slipping
- Lead time: made in 5–10 days after your impression is approved
- Personalisation: colour, text, logo, flag, or a design created with AI and viewable in 3D
- Ideal for: regular practice and competition — see the custom-fit models
The boil-and-bite mouthguard — from €29.90
- Manufacturing: by you: thermoformable, moulded at home in hot water (30 seconds in water at 80 °C, then 30 seconds of biting)
- Fit: adapted to your teeth, remouldable if the first moulding isn't perfect
- Lead time: shipped within 24–48 h, ready in a few minutes once received
- Personalisation: colours, text, logo, or a design created with AI and viewable in 3D
- Ideal for: beginners or getting kitted out quickly — see the boil-and-bite models
Which mouthguard for which profile?
- You're new to sport or getting back into it: boil-and-bite is the simple, affordable way to protect yourself straight away.
- You train regularly or are preparing for a competition (boxing, MMA, rugby, kickboxing): custom-fit gives a more precise fit and better comfort over time.
- Your child is between 11 and 16: boil-and-bite is suitable from age 11 and is easy to replace as their teeth develop.
- You're on a tight budget: boil-and-bite protects effectively for a minimal outlay.
- You wear a brace, are experiencing pain or have had recent dental treatment: ask your orthodontist or dentist for advice before any moulding or impression.
Can you start with boil-and-bite and move on to custom-fit?
Yes, it's actually a common path: many athletes start with a boil-and-bite mouthguard to get kitted out quickly, then invest in a custom-fit one once they train regularly. Whatever you choose, no mouthguard eliminates every risk: check its fit regularly and replace it as soon as it is damaged.
To narrow it down by sport, see our rugby, boxing and MMA guides.
Frequently Asked Questions
What is the real difference between a custom-fit and a boil-and-bite mouthguard?
A custom-fit mouthguard is made in a laboratory from your dental impression, with a kit sent to you after you order. A boil-and-bite mouthguard is one you mould yourself at home in hot water. The first gives a more precise fit; the second is a quicker, more affordable option.
Which one should you choose for competitive boxing, MMA or rugby?
For regular practice or competition, custom-fit is recommended: a more precise fit, better comfort and stability on impact.
Which one should you choose to start out or for occasional use?
The boil-and-bite mouthguard: moulded at home in 60 seconds, remouldable if needed, shipped within 24–48 h and available from €29.90.
Which mouthguard for a child?
Our boil-and-bite mouthguards are suitable from age 11 and are easy to replace as children grow. A custom-fit mouthguard is an option for regular practice, bearing in mind that it will need to be remade as the teeth develop.
Can I switch from boil-and-bite to custom-fit later?
Yes. Many athletes start with a boil-and-bite mouthguard and then invest in a custom-fit one once they train regularly. Both ranges are suitable for the same contact sports.