Night Guard but Still Having Jaw Pain? Here’s Why
- 5 minutes ago
- 6 min read
If you wear a night guard every night but still wake up with jaw pain, facial tension, headaches, or tightness, you may be wondering why it isn't solving the problem.
Night guards can play an important role in protecting the teeth and may be recommended by your dentist for grinding or clenching. However, jaw pain is often more complex than what is happening between your teeth.
At Uniphysio & Associates Physiotherapy in Oakville, we frequently assess patients with TMJ symptoms who already use a night guard but continue to experience discomfort.
The reason? A night guard and TMJ physiotherapy have different roles.
Night Guard but Still Having Jaw Pain? The Guard May Not Address Every Contributing Factor
A night guard—also called an occlusal splint or dental splint—is generally designed to help protect your teeth and manage forces associated with grinding or clenching.
Depending on your individual situation and the type of appliance prescribed, it may be an important part of your overall treatment plan.
However, a night guard does not necessarily address all of the muscles, joints, movement patterns, cervical factors, or habits that may be contributing to your symptoms.
This means it is possible to wear your night guard consistently and still experience TMJ-related pain.
1. You May Still Be Clenching Your Jaw
A night guard sits between your teeth, but it does not necessarily eliminate the muscular activity associated with clenching.
Some people clench during sleep, while others unknowingly hold tension in their jaw throughout the day—particularly while:
Working or concentrating
Driving
Exercising
Using a computer or phone
Feeling stressed
Sleeping
Repeated clenching can overload muscles such as the masseter and temporalis, which are heavily involved in chewing and jaw function.
Over time, these muscles may become painful, fatigued, or sensitive.
You may notice:
Sore jaw muscles in the morning
Facial tightness
Temple headaches
Pain when chewing
Jaw fatigue
Tenderness around the cheeks or temples
In these cases, protecting the teeth is only one part of managing the problem.
2. Your Jaw Muscles May Be Overworked or Tight
TMJ pain is not always coming directly from the temporomandibular joint itself.
For many people, the muscles surrounding the jaw contribute significantly to their symptoms.
Muscles that may be involved include the:
Masseter
Temporalis
Pterygoid muscles
Suprahyoid muscles
Muscles of the neck and upper cervical region
When these tissues become overloaded or poorly coordinated, you may experience pain even while using a night guard.
TMJ Physiotherapy Looks Beyond the Teeth
A TMJ physiotherapy assessment evaluates more than whether your teeth are grinding.
Your physiotherapist may assess jaw movement, muscle tenderness, joint mobility, mouth opening, neck function and other factors that could be contributing to your symptoms.
3. Your Neck May Be Contributing to Your Jaw Pain
The jaw and neck do not function completely independently.
The cervical spine, head position, jaw muscles and surrounding tissues work together during everyday activities.
For some patients, persistent neck stiffness, muscle tension or altered cervical mechanics may coexist with TMJ symptoms.
You may notice a combination of:
Jaw pain
Neck pain or stiffness
Headaches
Upper shoulder tension
Facial discomfort
Symptoms after prolonged computer or phone use
This is one reason a comprehensive TMJ physiotherapy assessment often includes examination of the neck and upper body, rather than focusing exclusively on the jaw.
4. Your Jaw Joint Itself May Need to Be Assessed
Not every TMJ problem is primarily muscular.
The temporomandibular joint contains several structures that help the jaw open, close and glide.
Some patients may experience:
Clicking or popping
Pain with opening
Pain while chewing
Limited mouth opening
Jaw deviation when opening
Episodes of catching or locking
Difficulty biting into larger foods
A night guard alone cannot tell us why these symptoms are occurring.
A TMJ physiotherapist can assess your jaw mechanics and determine whether joint mobility, muscle function or other musculoskeletal factors may be contributing.
5. Your Daytime Habits May Be Keeping Your Jaw Irritated
Nighttime grinding gets a lot of attention, but what happens during the other 16 hours of the day can also matter.
Some people repeatedly:
Clench their teeth while concentrating
Rest their chin on their hand
Chew gum for long periods
Bite their cheeks or lips
Hold tension in their face
Keep their teeth together when the jaw should be relaxed
Frequently eat very hard or chewy foods
If these habits repeatedly load sensitive jaw structures, symptoms can continue despite wearing a night guard every night.
Identifying these patterns is an important part of TMJ rehabilitation.
6. Breathing and Oral Resting Patterns May Also Be Relevant
For selected patients, a TMJ assessment may also consider breathing patterns, tongue resting posture and oral muscle function.
These factors are not the cause of every TMJ problem. However, when clinically relevant, they can form part of a broader assessment of how the jaw and surrounding structures are functioning.
At Uniphysio, we take a comprehensive approach rather than assuming that every person with TMJ pain has the same underlying problem.
7. Stress Can Increase Jaw Muscle Activity
Have you ever noticed yourself clenching your teeth during a stressful day?
Stress doesn't mean that jaw pain is “just psychological.” However, stress can influence muscle tension and parafunctional behaviours such as clenching.
For someone who already has an irritated or overloaded jaw, periods of increased clenching may contribute to symptom flare-ups.
Learning to recognize when your jaw is holding unnecessary tension can therefore be an important part of treatment.
How Can TMJ Physiotherapy Help If a Night Guard Isn't Enough?
If you have a night guard but are still having jaw pain, TMJ physiotherapy can help determine whether there are treatable musculoskeletal factors contributing to your symptoms.
At Uniphysio & Associates, your TMJ assessment may include evaluation of:
Jaw Movement and Mobility
We assess how your jaw opens, closes and moves from side to side, including whether movement is restricted, painful or asymmetrical.
TMJ and Jaw Muscles
We assess the muscles involved in chewing and jaw control for tenderness, tension and functional problems.
Neck and Posture
Because cervical dysfunction may coexist with TMJ symptoms, the neck and surrounding musculature may also be assessed when appropriate.
Clenching and Daily Habits
Recognizing daytime clenching and other repetitive jaw-loading behaviours can be an important component of symptom management.
Breathing, Tongue and Swallowing Function
When relevant to your presentation, we may assess breathing mechanics, tongue posture or swallowing-related function and collaborate with other healthcare professionals when appropriate.
What Does TMJ Physiotherapy Treatment Include?
Treatment depends on what we find during your assessment.
Your individualized treatment plan may include:
Hands-on manual therapy
Intraoral or external muscle techniques when appropriate
TMJ joint mobilization
Neck treatment
Therapeutic exercises
Jaw mobility and coordination exercises
Postural strategies
Education about clenching and jaw habits
Relaxation and breathing strategies
Tongue and oral resting posture education when indicated
BioFlex Laser Therapy when clinically appropriate
The objective is not simply to temporarily relax the jaw. It is to identify the factors that may be contributing to your symptoms and develop an appropriate treatment plan.
Should You Stop Wearing Your Night Guard?
Not without speaking to the dentist or healthcare professional who prescribed it.
A night guard may still be serving an important purpose, particularly if you grind your teeth or need protection from excessive dental wear.
TMJ physiotherapy does not necessarily replace your night guard.
Instead, the two approaches may serve different purposes.
Your dentist manages your dental and occlusal needs, while a physiotherapist with TMJ experience can assess the muscles, joints, movement and related musculoskeletal factors contributing to your symptoms.
For some patients, collaborative care is the most appropriate approach.
When Should You Get Your Jaw Assessed?
Consider speaking with an appropriate healthcare professional if you continue experiencing:
Morning jaw pain despite using a night guard
Persistent facial or jaw muscle tension
Pain while chewing
Frequent temple or jaw-related headaches
Limited mouth opening
Painful clicking or popping
Jaw catching or locking
Neck pain occurring alongside jaw symptoms
Symptoms that continue to interfere with eating, talking, sleeping or daily activities
Sudden severe jaw pain, significant swelling, fever, recent trauma, new neurological symptoms or other unexplained symptoms should receive appropriate medical or dental assessment.
Still Having Jaw Pain Despite Your Night Guard?
If you've been faithfully wearing your night guard but your jaw is still sore, tight or painful, it may be time to look beyond the teeth.
Your night guard may be doing exactly what it was designed to do while other factors contributing to your TMJ symptoms remain.
At Uniphysio & Associates Physiotherapy, we provide one-on-one TMJ and orofacial physiotherapy in a private treatment setting. Our approach looks at the jaw, surrounding muscles, neck, movement patterns and other relevant factors to develop an individualized treatment plan.
If you're experiencing persistent TMJ pain, jaw tension, headaches, difficulty opening your mouth or discomfort with chewing, a comprehensive TMJ physiotherapy assessment can help determine what may be contributing to your symptoms.
Looking for TMJ physiotherapy in Oakville or the surrounding area? Contact Uniphysio & Associates to learn more or book a TMJ physiotherapy assessment.
Or Call Us today!
(905) 997-1677
