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Should I Choose a Thin or Thicker Mouth Guard?
April 13, 2021 · Ashely Notarmaso

Should i choose a thin, thicker or thickest night guard?

Article updated for accuracy on 06/19/23

When it comes to choosing between a thin or thicker mouth guard, there are a few factors to consider that can help you make an informed decision. Here are some guidelines to help you choose the right mouth guard for your needs:

  1. Level of Protection: Thicker mouth guards generally provide more protection than thin ones. If you participate in high-impact sports such as boxing, football, or martial arts, where there is a higher risk of strong impacts to the face, a thicker mouth guard may be recommended to absorb and distribute the force more effectively. Similarly, for individuals who grind or clench their teeth at night (bruxism), custom night guards made by dental professionals are often recommended. These custom-fitted night guards can be tailored to your specific needs, providing optimal thickness and cushioning to protect your teeth, jaw, and TMJ (temporomandibular joint) during sleep. The customized design ensures a comfortable fit and maximizes the level of protection against grinding forces.
  2. Comfort and Fit: Thinner mouth guards tend to be more lightweight and less bulky, making them more comfortable to wear for extended periods. If you find thicker mouth guards uncomfortable or have difficulty speaking or breathing while wearing them, a thinner mouth guard might be a better option. A well-fitting mouth guard is essential for both protection and comfort, so consider getting a custom-fit mouth guard if possible.
  3. Dental Considerations: If you have dental restorations, such as braces, bridges, or crowns, it is crucial to consult with your dentist or orthodontist. They can provide guidance on the type of mouth guard that will accommodate your specific dental needs. Thinner mouth guards are generally easier to adjust to accommodate dental work.
  4. Sport-Specific Recommendations: If choosing a mouthguard for sports, different sports have varying requirements and recommendations for mouth guards. For instance, some sports organizations may have guidelines specifying the thickness of mouth guards based on the level of contact involved. Consult the relevant sports organization or your coach for specific recommendations tailored to your sport.
  5. Personal Preference: Ultimately, your personal preference plays a role in choosing between a thin or thicker mouth guard. Some individuals may feel more secure with a thicker mouth guard, even if the sport they participate in does not necessitate it. Others may prefer the minimalism and comfort of a thin mouth guard. Consider your own preferences and how you feel most confident and comfortable while wearing a mouth guard.

Remember that the primary purpose of a mouth guard is to protect your teeth, jaws, and soft tissues from injury.

defend your teeth against the daily grind graphic

Does it really matter what thickness I choose? Aren’t I protecting my teeth either way?

The thickness of a mouthguard can impact its overall comfort and adaptability. Thinner mouthguards are generally less bulky and can be more comfortable to wear, especially for individuals who are not accustomed to wearing dental appliances. However, some individuals may prefer the added cushioning and perceived security provided by a thicker mouthguard.

Thicker mouthguards often offer increased durability and longevity due to the additional material. They are typically more resistant to wear and tear from grinding forces over time, which can be important for individuals with more severe grinding habits or those who exert significant force during grinding.

What is the ideal thickness for a mouth guard to treat teeth grinding?

Below are three standard thickness options to choose from.

Thin (1mm)- This is very thin (think invisalign thin). This thickness is suitable for daytime clenching and grinding or very light nighttime bruxism.

Thicker for Moderate/Medium (2mm)- For reference, a nickel coin is 2mm thick. This is the most common night guard thickness and works well to combat the effects of most teeth grinding and jaw clenching habits.

Thickest for Heavy duty (3mm) – Any night guard that is 3mm thick or more is for heavy, intense episodes of teeth grinding and jaw clenching. The thicker the night guard, the more durable it becomes. Beware that this type may take longer to feel comfortable in the mouth.

The ideal thickness for a mouth guard to treat teeth grinding, also known as bruxism, can vary depending on individual factors and preferences. Generally, there is no one-size-fits-all answer to this question. However, here are some considerations to keep in mind:

  1. Custom-Fitted Mouth Guards: Custom-fitted mouth guards, which are made by dental professionals, are often recommended for treating teeth grinding. These mouth guards are personalized to fit your mouth and teeth precisely. The thickness can be determined based on your specific needs and the guidance of your dentist.
  2. Dual-Layer Design: Many custom-fitted mouth guards for teeth grinding feature a dual-layer design. The inner layer is often thicker and more cushioning, while the outer layer is thinner and more durable. This combination provides both comfort and protection.
  3. Comfort and Functionality: The ideal thickness should strike a balance between providing enough cushioning and protection while being comfortable to wear throughout the night. Thicker mouth guards may offer more durability and protection against grinding forces, but they can feel bulkier and may take some time to get used to. Thinner mouth guards may be more comfortable but may not offer the same level of protection.
  4. Dentist’s Recommendation: Consulting with a dentist or a dental professional who specializes in treating bruxism is highly recommended. They can evaluate your specific case, assess the severity of your teeth grinding, and provide personalized recommendations, including the ideal thickness for your mouth guard.
  5. Trial and Adjustment: It is not uncommon for adjustments to be made to the mouth guard’s thickness during the treatment process. Your dentist may initially provide a mouth guard of a certain thickness and then evaluate its effectiveness. Based on your feedback and any changes in your condition, they may make modifications to the thickness to optimize the treatment.

If I’m a light teeth grinder, should I choose a thinner mouth guard?

If you are a light teeth grinder, choosing a thinner mouth guard may be a suitable option for you. Here’s why:

  1. Comfort: Thinner mouth guards are generally less bulky and more comfortable to wear, especially for individuals who are not accustomed to wearing dental appliances. If your teeth grinding is mild and infrequent, a thinner mouth guard can provide adequate protection without causing discomfort or interfering with your sleep.
  2. Adequate Protection: For light teeth grinding, a thinner mouth guard can still offer sufficient protection against the grinding forces. While it may not have the same level of cushioning as a thicker mouth guard, it can act as a barrier between your upper and lower teeth, helping to prevent enamel wear and potential damage caused by grinding.
  3. Ease of Adaptation: Thinner mouth guards are often easier to adapt to, especially if you are new to wearing a mouth guard. The reduced bulkiness can make it more natural to wear, and you may find it easier to adjust to the sensation of having the guard in your mouth.

However, it’s important to note that individual preferences and comfort levels may vary. Some individuals may prefer the added cushioning and perceived security provided by a thicker mouth guard, even if their teeth grinding is light. It’s always a good idea to consult with a dentist or dental professional who specializes in treating bruxism. They can evaluate your specific condition and provide personalized recommendations on the most suitable thickness for your needs.

Does a thicker mouth guard provide better protection against teeth grinding?

Yes, a thicker mouth guard can provide better protection against teeth grinding compared to a thinner one. The additional thickness allows for increased cushioning and absorption of the grinding forces, reducing the impact on your teeth and jaw.

Teeth grinding, or bruxism, involves clenching or grinding your teeth together, which can cause various dental problems and discomfort. A thicker mouth guard can help distribute the forces more evenly, providing a buffer between the upper and lower teeth.

Here are a few reasons why a thicker mouth guard can offer better protection:

  1. Enhanced Shock Absorption: Thicker mouth guards have a greater ability to absorb and disperse the impact caused by teeth grinding. The additional material acts as a cushion, helping to minimize the pressure and stress transferred to your teeth and jaw joints.
  2. Increased Durability: Thicker mouth guards are generally more durable and less prone to wearing down or becoming damaged over time. This is particularly important for individuals who have severe teeth grinding habits or tend to exert significant force during grinding.
  3. Protection against Jaw Pain and TMJ Disorders: The extra thickness in a mouth guard can provide better support and help alleviate jaw pain associated with bruxism. It can help reduce strain on the temporomandibular joint (TMJ) and associated muscles.

While a thicker mouth guard can offer better protection, it’s essential to find a balance between thickness and comfort. Some individuals may find thicker mouth guards bulkier or less comfortable to wear, which could affect compliance. It’s important to consult with a dentist or dental professional who specializes in treating bruxism to determine the appropriate thickness for your specific needs.

Can a thin mouth guard effectively prevent teeth grinding?

While a thin mouth guard may not provide the same level of protection as a thicker one, it can still be effective in preventing teeth grinding to some extent. Here are a few points to consider:

  1. Cushioning and Protection: Even though a thin mouth guard may not have as much bulk or thickness, it can still act as a cushion between your upper and lower teeth. This can help reduce the direct impact of grinding forces and protect your teeth from wear and damage.
  2. Comfort and Compliance: Thin mouth guards are generally less bulky and may be more comfortable for some individuals to wear, especially during sleep. Increased comfort can promote better compliance, ensuring you consistently wear the mouth guard, which is crucial for managing teeth grinding.
  3. Mild to Moderate Teeth Grinding: Thin mouth guards are often recommended for individuals with mild to moderate teeth grinding habits. If your teeth grinding is not severe, a thin mouth guard can provide sufficient protection and alleviate symptoms such as tooth sensitivity or jaw discomfort.
  4. Custom-Fitted Options: Opting for a custom-fitted thin mouth guard can improve its effectiveness. A dental professional can create a mouth guard that fits your teeth precisely, providing better stability and coverage despite its thinness.

It’s important to note that the effectiveness of a thin mouth guard may vary depending on the severity of your teeth grinding and individual factors. For individuals with severe bruxism or those who apply significant force during grinding, a thicker mouth guard may be more suitable for optimal protection.

Consulting with a dentist or dental professional who specializes in treating bruxism is highly recommended. They can assess your specific condition, evaluate the severity of your teeth grinding, and provide personalized recommendations on the thickness and type of mouth guard that will be most effective for you.

Which thickness of mouth guard is more comfortable for treating teeth grinding?

The comfort level of a mouth guard for treating teeth grinding can vary from person to person, and preferences may differ. However, generally speaking, thinner mouth guards tend to be more comfortable for many individuals. Here’s why:

  1. Reduced Bulkiness: Thinner mouth guards are less bulky and take up less space in your mouth. This can make them feel more natural and less obtrusive while you sleep. It may be easier to adjust to wearing a thin mouth guard, especially if you’re not accustomed to wearing dental appliances.
  2. Ease of Breathing and Speaking: Thinner mouth guards allow for better airflow and may interfere less with your ability to breathe and speak. They don’t occupy as much space in the oral cavity, minimizing any potential discomfort or feeling of restriction.
  3. Minimal Jaw Displacement: Thinner mouth guards typically don’t cause significant changes in your bite or jaw position. This can contribute to a more comfortable experience, as there is less alteration to the natural alignment of your teeth and jaw.
  4. Custom-Fitted Options: Opting for a custom-fitted mouth guard, regardless of thickness, can significantly enhance comfort. A dental professional can tailor the mouth guard to fit your mouth precisely, ensuring a snug and comfortable fit.

However, it’s important to note that comfort can be subjective, and some individuals may prefer the added cushioning and perceived security of a thicker mouth guard. It ultimately depends on personal preference and how well the mouth guard fits and feels for you.

Do thicker mouth guards offer more durability and longevity for teeth grinding?

Yes, thicker mouth guards generally offer increased durability and longevity when it comes to teeth grinding. Here are some reasons why thicker mouth guards are often more durable:

  1. Material Thickness: Thicker mouth guards are made with a greater amount of material, which can enhance their overall strength and resistance to wear. The extra thickness provides a sturdier barrier between your teeth, making it less prone to damage from grinding forces.
  2. Absorption of Forces: Thicker mouth guards have more material to absorb and distribute the impact caused by teeth grinding. This helps to reduce the direct pressure on your teeth, preventing premature wear and tear of the guard itself.
  3. Resisting Wear and Tear: Teeth grinding can exert significant forces on the mouth guard over time. Thicker mouth guards are generally better equipped to withstand the repetitive grinding motions and the wear they can cause, prolonging the lifespan of the guard.
  4. Long-Term Protection: Thicker mouth guards are more likely to maintain their shape and structural integrity over extended periods of use. This ensures consistent protection for your teeth, jaw, and associated structures, reducing the risk of dental problems and discomfort.

It’s important to note that while thicker mouth guards may offer increased durability, the specific lifespan of a mouth guard can still vary based on factors such as the severity of your teeth grinding, the frequency of use, and the quality of the materials used in its construction. Regular inspection and replacement of worn-out mouth guards are essential to maintain their effectiveness.

Can the thickness of a mouth guard affect its ability to alleviate jaw pain caused by teeth grinding?

Yes, the thickness of a mouth guard can affect its ability to alleviate jaw pain caused by teeth grinding, although it’s not the sole determining factor. Here’s how thickness can play a role:

  1. Cushioning and Shock Absorption: Thicker mouth guards generally provide more cushioning and better shock absorption capabilities. The additional thickness allows for increased distribution of forces generated by teeth grinding, reducing the impact on the jaw joints and muscles. This can help alleviate jaw pain and discomfort associated with bruxism.
  2. Jaw Alignment: Thicker mouth guards may slightly alter the position of the jaw and help with aligning it in a more optimal way. This can help relieve stress on the temporomandibular joint (TMJ) and the surrounding muscles, potentially reducing jaw pain.
  3. Individual Comfort: The comfort of a mouth guard is subjective and can vary from person to person. While thicker mouth guards may offer enhanced protection and potential pain relief, some individuals may find them bulkier and less comfortable to wear. In such cases, a thinner mouth guard that still provides adequate protection may be a more comfortable option.

It’s important to note that jaw pain caused by teeth grinding can have various underlying factors, and the thickness of a mouth guard alone may not be sufficient to address all the causes. In addition to wearing a mouth guard, it is advisable to consult with a dentist or dental professional who specializes in treating bruxism. They can evaluate your specific condition, identify any contributing factors, and recommend a comprehensive treatment plan that may include additional therapies or interventions to alleviate jaw pain effectively.

How Do I Know Which Night Guard to Choose?

choose my night guard
thinnest night guard for teeth grinding

thin dental night guard