Instructions for moulding mouthguards

Gather the necessary materials

To properly fit your mouthguard, you’ll need: mouthguard, scissors, a bowl to fit the boiling water and mouthguard, a bowl of cold water, a towel. Ensure that you wash your hands and the mouthguard with soap and water.

Trim the mouthguard for length

To place mouthguard in the mouth and bite firmly for 3 seconds. Remove the mouth guard and have a look at the indents on the inside surface. You may need to trim the ends of the mouthguard to make sure it fits comfortably and doesn’t irritate the back of your mouth. If it pokes into the back of your mouth, or causes you to gag, trim off a little off the back using scissors, making sure to round the edges off. A mouthguard is mostly used to protect the vulnerable front teeth, not the molars, so you’ve got some wiggle-room with regards to cutting it at the end.

Heat the mouthguard in boiling water

Boil enough boiling water to submerge the mouthguard. Start a small pot of boiling water on the stove. You can alternatively boil some water in the hot water jug or use a microwave. Place the mouthguard carefully and submerge it in the hot water and let it soften for 20 seconds.

Remove the mouthguard

Using a large spoon, carefully take the mouthguard out of the boiling water, avoiding the sides folding to touch each other and quickly place it in a container of cold water for no more than 2 seconds. Then blot the mouthguard on the towel and get it into your mouth as quickly as possible, adjusting it against your upper teeth. It should be warm but not uncomfortably hot.

Using your thumbs, push the mouth guard up and back against your molars and adapt it around your front teeth. Bite down firmly to get the impression of your teeth on the bottom of the mouthguard. Place your tongue against the roof of the mouth to create pressure and suck the guard firmly against your top teeth. This will achieve a tight fit around your teeth. This should take 30-45 seconds. Do not chew the mouthguard or move it around in your mouth while you’re fitting it.

Place the mouthguard in cold water

Remove the mouthguard and soak it in the cold water. Let it cool for a minute and try the fit. It should fit snugly against your top teeth without having to hold it in with you tongue, and it should fit naturally into your bottom teeth. If it feels uncomfortable or is ill-fitting, try remoulding it again until you get a proper fit.

If you feel a little nervous about the steps, here is a video to help. Your mouthguard is slightly different from the one shown in video – it generally will not have the front strap.

Author Mo Al-Dujaili

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