Can Night Guards Ruin Your Teeth?

Night guards are commonly used to protect teeth from the effects of bruxism – grinding and clenching teeth during sleep. They are recommended by dentists as an effective form of prevention of mechanical damage to teeth, temporomandibular joints, and masticatory muscles. Despite this, patients still wonder: Can night guards destroy teeth? The answer is not clear. Although they are safe and beneficial in most cases, improper use of a guard, especially an ill-fitting one, can have the opposite effect.

When a Guard Helps, Not Harms

In properly selected cases, a night guard has a protective function. Placed between the upper and lower teeth, it prevents direct contact of the teeth, reduces pressure, minimizes abrasion of the enamel, and protects against microcracks. Additionally, it helps to relax excessively tense masticatory muscles and stabilizes the temporomandibular joint.

People who regularly use a custom-fitted splint rarely experience complications. On the contrary, they often notice reduced jaw pain, less tooth sensitivity, and improved sleep quality.

When Can a Night Guard Harm Your Teeth?

Despite the general benefits, there are situations in which a night guard can cause unwanted effects, including damage to your teeth. The most common causes are:

Badly Fitted Night Guard

Over-the-counter mouth guards, so-called "thermoplastic" or "ready-made", are not individually fitted to the patient's dentition. They can cause uneven pressure on some teeth, lead to tooth movement or changes in bite, and/or cause discomfort and overload of certain contact points, which can result in fractures or loosening of teeth.

Too Long or Incorrect Use

Even a well-fitted mouth guard can be harmful if used in a manner inconsistent with the instructions. Examples include wearing the mouth guard 24 hours a day without consulting a specialist and not cleaning the mouth guard, which leads to the growth of bacteria and fungi - these can cause tooth decay, gingivitis, and even infections.

Failure to Monitor Treatment Progress

Bruxism is a dynamic condition. If the patient does not monitor the condition of the teeth at the dentist, the mouthguard may not fit the changing bite. This condition may result in new damage, pain, or aggravation of existing problems.

How to Prevent Negative Effects?

To ensure that the night guard does not harm, a few key rules should be followed:

- Consultation with a dentist \- only a dentist can assess whether the guard is needed and what type will be best.

- Individual fit \- a guard made on the basis of an impression of the oral cavity is much safer and more comfortable than ready-made products.

- Regular check-ups \- checking the fit and condition of the teeth allows for early detection of any problems.

- Mouthguard hygiene \- it should be cleaned after each use and stored in a dry, ventilated container.

In Conclusion

Night guards do not damage teeth if used correctly. On the contrary, they protect against damage resulting from bruxism and occlusal overload. However, if incorrectly selected or used, they can cause more harm than good. That is why cooperation with a dentist, individual adjustment, and regular check-ups of the oral cavity are so important. Only then will the night guard be an effective and safe tool in protecting dental health.

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