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can a custom mouth guard be adjusted if it feels uncomfortable over time-0

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Can a custom mouth guard be adjusted if it feels uncomfortable over time?

Nov 14, 2025

A custom mouth guard is made to fit your mouth perfectly, but after a while some users complain that it is uncomfortable, and that brings up the question, can this custom made device be altered? The answer is, it depends on the type of custom mouth guard and the cause of the discomfort. With over 18 years of experience, this type of question is common to for Xiamen Yizhou Imp. & Exp. Co., Ltd., a professional manufacturer. They use high quality, safe and tested materials, EVA that is compliant with the BPA requirements and passes the 65th revision that tests for lead and Bisphenol-A. The safety is unquestionable, but discomfort is always likely because of the initial fitting problem, or because the mouth structure changes over time.

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Custom mouth guards discomfort reasons

Wearing a custom mouth guard can become uncomfortable for a number of reasons. One being oral structures change with time. For instance, if someone mildly grinds their teeth, over time, the teeth become worn, and consequently, the mouth guard will start to fit differently. Incorrect maintenance can also be a reason. For instance, if a mouth guard is not cleaned frequently, it will discomfort the user. Debris collect and over time it will become a big problem. When a mouth guard is new there may be small gaps or closed spaces that become more problematic with use. Such issues are common and most can be fixed with simple adjustments, as mentioned by Xiamen Yizhou’s team, who also provides OEM and ODM service.

Types of custom mouth guard adjustments

Most custom mouth guards do not have adjustments, but many can be changed to enhance comfort. For sports custom mouth guards, which are made to shield the lips, tongue, teeth, and inner gills, minor adjustments can be performed by carefully heating and reshaping the mouth guard to fit the current oral structure. Sports custom mouth guards made by Xiamen Yizhou, like models YZ1507 and YZ1623, are made with adjustable materials for these types of adjustments. Anti-snoring custom mouth guards and teeth whitening custom mouth trays have different methods for adjustments. The anti-snoring custom mouth guard which aids uninterrupted sleep and nighttime snoring has discomfort where the jaw positioning can be adjusted. However, major adjustments to the mouth guard should be left to the professionals to ensure the functionality of the product does not change.

Steps to safely make adjustments to a mouth guard:

To make mouth guard adjustments - safely clean mouth guard - mild soap and warm water - get rid of dirt - thoroughly clean mouth guard. Check the areas that are causing discomfort and check for adjustments in positions and fit. For moldable custom mouth guards - heat a pot of water to a specific temperature (around 70-80 degrees Celsius) and put in for 10-15 seconds. Next, put the mouth guard in your mouth and bite down carefully to mold it to your teeth and gums then keep it like that for a couple of minutes. Xiamen Yizhou suggests a short trial period for adjusted custom mouth guards that are new or modified. They should always make adjustments and fix any issues that are new. If discomfort persists, have their after-sales service for revisions.

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Knowing when to call a pro for mouth guard adjustments.

There are times when you should let a professional handle adjustments instead of trying to do it yourself. For instance, if the mouth guard is damaged and has cracks, trying to fix it yourself could worsen the issue. In cases where you have new discomfort due to a major oral health issue like a cavity or gum disease, it is best to involve a dentist, or the professionals at Xiamen Yizhou, since they can adjust or craft a new custom mouth guard to best fit you. Xiamen Yizhou offers comprehensive after-sales service to handle these situations. They also provide quick sample production, meaning if you need a new custom mouth guard, you can get a sample within three days for fit testing before they start the bulk production.

Tips for avoiding discomfort while using a custom mouth guard

You can minimize discomfort after adjustments by looking after your custom mouth guard properly. After each use, cleaning your mouth guard with a soft bristle toothbrush and non-bleach toothpaste will help. You can avoid structural damage by refraining from using strong chemicals or boiling water. To avoid bacteria, drying your mouth guard after use, and then keeping it in a clean, dry case, will help. Inspect your mouth guard for cracks and thinning regularly. To stay comfortable and protected, Xiamen Yizhou recommends that custom mouth guards be replaced every 6-12 months depending on how often they are used. These suggestions will result in a saved mouth guard and a maintained comfort level.

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