Why a Good Fit Matters in Mouthguards

When it comes to protecting your teeth during physical activities, a mouthguard is an essential piece of equipment. Whether you are an athlete engaging in contact sports or an individual enjoying recreational activities, a well-fitted mouthguard can prevent serious dental injuries. In this article, we will explore the importance of a good fit in mouthguards and how it can make a significant difference in protecting your oral health.

Understanding the Function of a Mouthguard

A mouthguard is a specialized device worn over your teeth and gums to provide cushioning and protection. The primary purpose of a mouthguard is to absorb and disperse the impact energy generated during sports or physical activities. By distributing the force evenly, it helps prevent dental injuries, including broken teeth, jaw fractures, and lacerations to the lips and tongue.

Why a Good Fit Matters

One of the key factors that determine the effectiveness of a mouthguard is its fit. A mouthguard should fit securely and comfortably over your teeth, providing a barrier between your upper and lower teeth. Here are a few reasons why a good fit matters:

1. Enhanced Protection

A properly fitting mouthguard offers superior protection compared to ill-fitting ones. It ensures that the impact energy is adequately absorbed and dispersed, reducing the risk of dental injuries. A mouthguard that fits well acts as a shock absorber, preventing the full force of a blow from reaching your teeth and supporting structures.

2. Comfort and Stability

Wearing a mouthguard that fits snugly can significantly improve comfort and stability during physical activities. A well-fitted mouthguard remains securely in place, allowing you to focus on your performance rather than constantly adjusting or readjusting it. It also eliminates the need to clench your teeth to keep the mouthguard in position.

3. Clear Speech and Breathing

A poorly fitting mouthguard can interfere with your ability to communicate clearly and breathe properly. An ill-fitting mouthguard may cause slurring or mumbling of speech, making it challenging for teammates or coaches to understand instructions. Moreover, it can restrict the airflow, leading to reduced oxygen intake during intense physical exertion.

4. Reduced Risk of Soft Tissue Injuries

In addition to dental injuries, poorly fitting mouthguards can increase the risk of soft tissue injuries, such as cuts and bruises to the lips, gums, and cheeks. A mouthguard that fits correctly creates a protective barrier between the teeth and soft tissues, reducing the likelihood of accidental biting or injury caused by external forces.

How to Ensure a Good Fit

To maximize the benefits of a mouthguard, it is crucial to ensure a good fit. Here are a few tips to help you achieve that:

1. Custom-Fit Mouthguards

Consider getting a custom-fit mouthguard created by a dental professional. These mouthguards are tailor-made to fit your unique dental structure, providing maximum comfort, protection, and stability. Although they are slightly more expensive than over-the-counter mouthguards, their exceptional fit makes them worth the investment.

2. Boil-and-Bite Mouthguards

If a custom-fit mouthguard is not within your budget, boil-and-bite mouthguards are a viable alternative. These mouthguards can be softened in boiling water and then molded to your teeth to create a reasonably good fit. By following the manufacturer’s instructions carefully, you can achieve a better fit compared to stock mouthguards.

3. Regular Evaluation and Replacement

Over time, your mouth shape may change, or your mouthguard may wear out. It is crucial to have your mouthguard evaluated regularly by a dental professional to ensure it still provides a proper fit. Additionally, consider replacing your mouthguard if it becomes damaged, ill-fitting, or loses its shape.

Remember, investing in a well-fitted mouthguard not only safeguards your teeth but also protects your overall oral health. Don’t compromise on protection – prioritize your safety by choosing a mouthguard that fits perfectly.


A good fit is of utmost importance when it comes to mouthguards. The right fit ensures enhanced protection, comfort, stability, and aids in clear communication and proper breathing. Whether you opt for a custom-fit or boil-and-bite mouthguard, prioritize your oral health by ensuring a snug and secure fit. By doing so, you can continue enjoying your favorite activities while minimizing the risk of dental injuries and protecting your winning smile.