Sports, physical activities, and even recreational play can expose the mouth and jaw to sudden impact. While many people associate mouth guards only with protecting teeth, their role goes far beyond preventing chipped or broken enamel. Properly fitted mouth guards can help reduce jaw injuries and may even lower the risk of concussions by absorbing and dispersing impact forces.
At Linden Market Dental, patients often ask whether mouth guards are truly necessary and how they protect more than just the teeth. Understanding how mouth guards work and when they should be used helps individuals and families make informed decisions with guidance from a trusted dentist in Winnipeg.
Understanding Jaw Injuries and Concussions
Jaw injuries and concussions often occur during contact sports, falls, or accidental collisions. The jaw is directly connected to the skull, meaning force to the lower face can travel upward toward the head and brain.
Common causes of jaw-related injuries
Jaw injuries may occur due to
• Contact sports such as hockey, football, basketball, or martial arts
• Falls during cycling, skating, or skiing
• Accidental impacts during recreational activities
• Workplace or training-related injuries
These incidents can result in jaw fractures, tooth damage, soft tissue injuries, and in some cases, concussions.
How Mouth Guards Protect the Jaw
Mouth guards act as a cushion between the upper and lower teeth. When impact occurs, the guard absorbs and distributes force instead of allowing it to transfer directly through the jaw.
Reducing direct impact on the jaw
A properly fitted mouth guard stabilizes the jaw and limits excessive movement during a collision. This can reduce the likelihood of jaw fractures, joint strain, and soft tissue injuries.
Supporting the temporomandibular joint
The temporomandibular joint plays a key role in jaw movement. Sudden impact can strain this joint, leading to pain and dysfunction. Mouth guards help reduce stress on this area by maintaining proper jaw positioning during impact.
The Connection Between Mouth Guards and Concussion Prevention
How do impact forces travel
When the lower jaw is struck, force can travel upward toward the skull. This sudden movement increases the risk of head injury. While mouth guards cannot prevent all concussions, they may help reduce their severity by limiting how much force reaches the head.
Absorbing and dispersing energy
Mouth guards absorb part of the energy created by impact and spread it across a wider area. This reduces concentrated force and helps protect the jaw, teeth, and surrounding structures.
Stabilizing the head and neck region
By reducing sudden jaw movement, mouth guards may also help stabilize the head and neck during impact. This stabilization is believed to play a role in lowering concussion risk in some situations.
Why Teeth Protection Alone Is Not Enough
Many people assume mouth guards are only about preventing broken teeth. While dental protection is important, the jaw and surrounding structures also need protection.
Preventing soft tissue injuries
Without a mouth guard, a sudden impact can cause the teeth to cut into the lips, cheeks, or tongue. Mouth guards create a barrier that reduces the risk of these painful injuries.
Protecting dental restorations
Crowns, fillings, and orthodontic appliances are vulnerable during impact. Mouth guards help protect these dental investments while also supporting jaw safety.
Types of Mouth Guards and Their Effectiveness
Stock mouth guards
Stock mouth guards are pre-formed and ready to wear. While they offer some protection, they often fit poorly and may interfere with breathing or speaking.
Boil and bite mouth guards
These guards soften in hot water and are shaped to the teeth by biting down. They provide better protection than stock options but still may not fit precisely.
Custom mouth guards
Custom mouth guards are designed by a dentist in Winnipeg using impressions of the patient’s teeth. They offer the best fit, comfort, and protection, making them the preferred option for athletes and active individuals.
Custom guards stay securely in place, allow normal breathing and speech, and provide consistent protection during activity.
Who Should Wear a Mouth Guard
Mouth guards are beneficial for a wide range of individuals, not just professional athletes.
Children and teens
Youth sports often involve contact, even when not classified as high risk. Mouth guards help protect developing teeth and jaws while supporting safe play.
Adults in recreational sports
Adult leagues, fitness activities, and outdoor sports carry similar risks. Mouth guards provide protection regardless of age or experience level.
Individuals with orthodontic appliances
Braces and aligners increase the risk of oral injury during impact. A properly designed mouth guard helps protect both teeth and orthodontic appliances.
When to Replace a Mouth Guard
Mouth guards should be replaced when they show signs of wear, damage, or poor fit. Children and teens may need replacements more frequently as their teeth and jaws grow.
Regular dental visits allow your dentist Winnipeg patients trust to assess whether a mouth guard still provides proper protection.
Proper Care and Maintenance of Mouth Guards
Maintaining a mouth guard helps ensure effectiveness and hygiene.
Recommended care includes
• Rinsing before and after use
• Cleaning with a soft toothbrush and mild soap
• Storing in a ventilated case
• Avoiding heat exposure
• Bringing the guard to dental visits for evaluation
Proper care extends the life of the guard and keeps it comfortable to wear.
The Role of Professional Guidance
Not all mouth guards provide the same level of protection. Professional evaluation ensures that the guard fits properly, supports jaw alignment, and suits the specific activity involved.
A dentist in Winnipeg can recommend the right type of mouth guard based on age, sport, and dental needs. Personalized care helps reduce injury risk and improves comfort.
Addressing Common Misconceptions
Mouth guards are only for contact sports
Even non-contact activities can involve falls or collisions. Mouth guards provide added protection in a wide range of physical activities.
Any mouth guard offers the same protection
Fit and material quality make a significant difference. Custom mouth guards offer superior protection compared to over-the-counter options.
Final Thoughts
Mouth guards play an important role in preventing jaw injuries and may help reduce the risk of concussions by absorbing and dispersing impact forces. They protect not only teeth, but also the jaw, soft tissues, and surrounding structures.
Whether for sports, recreation, or physical training, wearing a properly fitted mouth guard is a simple step that supports long-term oral and overall health.
Schedule a Mouth Guard Consultation in Winnipeg
If you or your child participates in sports or active pursuits, the team at Linden Market Dental can help you choose the right mouth guard for effective protection. We provide custom solutions designed for comfort, safety, and durability.
Call 204-487-2226 to schedule an appointment with a trusted dentist in Winnipeg and learn how a custom mouth guard can help protect your smile and jaw during physical activity.


