Temporomandibular joint (TMJ) dysfunction can cause daily discomfort that interferes with speaking, chewing, and even resting. The temporomandibular joint, located near the ears on both sides of the face, plays a critical role in jaw mobility. When it becomes inflamed or strained, symptoms such as clicking, locking, jaw pain, and headaches can occur.
While many people focus on treatment after pain arises, understanding what might be making your TMJ symptoms worse is a key part of managing the condition. Certain everyday behaviours often contribute to tension or misalignment of the jaw. Identifying and adjusting these behaviours may offer some relief, and may help prevent symptoms from intensifying.
What Is the Temporomandibular Joint & Why It’s So Sensitive
The temporomandibular joint acts like a sliding hinge, allowing the lower jaw to move up and down and side to side. It relies on a complex system of muscles, ligaments, and bones to work properly. Because of this complexity, the temporamandibular joint can be affected by physical stress, muscular imbalance, or even poor posture.
Though underlying structural issues such as arthritis or jaw injury can contribute to TMJ dysfunction, many people develop or worsen their symptoms through everyday habits. Recognizing and modifying these triggers can be an important step in supporting overall jaw health.
Clenching & Grinding Strain the Joint
One of the most common behaviours that worsens TMj symptoms is clenching or grinding the teeth, known as bruxism. Many people aren’t aware that they grind their teeth, especially when it happens during sleep.
This involuntary habit places significant stress on the jaw joint and surrounding muscles, leading to soreness, tension, and even tooth damage. Daytime clenching, especially during moments of stress or concentration, can be just as harmful.
Signs of bruxism may include:
- Morning jaw pain or stiffness
- Worn or chipped teeth
- Clicking or popping when opening the mouth
- Frequent headaches or earaches
Addressing this habit often involves stress management, awareness training, and sometimes a custom night guard to reduce overnight strain.
Poor Posture Can Shift Jaw Alignment
The alignment of your spine, shoulders, and neck has a direct impact on how your jaw functions. When your head is out of alignment, the muscles that support the jaw work harder to maintain normal movement. Over time, this can place additional strain on the temporomandibular joint and contribute to inflammation or dysfunction.
Correcting Your Posture
Simple posture corrections may include:
- Keeping your screen at eye level
- Sitting upright with shoulders relaxed
- Taking regular movement breaks during long periods of sitting
These changes might not relieve symptoms immediately, but they can help reduce the physical tension that contributes to jaw pain.
Chewing Habits That Create Imbalance
The way you chew can play a surprisingly large role in TMJ. Constantly chewing on one side of your mouth, or frequently eating hard or chewy foods, can contribute to muscular imbalance and joint strain.
People who favour one side when chewing often develop fatigue and tightness on that side of the jaw. Over time, this may contribute to a misaligned bite or uneven wear on the teeth, both of which can worsen TMJ symptoms.
Changing Your Habits
Habits to consider changing include:
- Alternating chewing sides
- Choosing softer foods during flare-ups
- Avoiding gum or crunchy snacks when jaw pain is present
Even small dietary adjustments may give the jaw a better chance to rest and recover.
Oral Fixations & Repetitive Stress
Habits like nail biting, pen chewing, or using your teeth to open packages may seem harmless, but these actions place the jaw in unnatural positions and increase repetitive stress on the joint.
The muscles and ligaments surrounding the TMJ are not designed for these constant, low-level pressures. Over time, these actions can shift the alignment of the jaw and contribute to muscle fatigue or inflammation.
Common oral habits to be aware of:
- Chewing on ice or hard candies
- Resting the chin in your hand
- Biting objects out of stress or boredom
Replacing these behaviours with healthier alternatives, like using a fidget tool or stress ball, can help minimize their impact.
The Impact of Stress on TMJ Health
Emotional stress often leads to physical tension, especially in the jaw, neck, and shoulders. When you’re under pressure, you may unconsciously tighten your jaw or grind your teeth; especially during sleep.
Chronic stress can lead to inflammation, worsen muscular tension, and increase your perception of pain. While stress alone may not cause TMJ dysfunction, it often makes existing symptoms feel worse.
What Stress Symptoms Look Like
Stress-related symptoms might include:
- Increased jaw tightness or locking
- Pain flare-ups during emotionally intense periods
- Difficulty relaxing the face or jaw
Relaxation techniques like breathing exercises, gentle stretching, or speaking to a mental health provider can help reduce this physical tension.
Botox for TMJ: A Modern Approach to Relief

When lifestyle changes aren’t enough to reduce TMJ pain, other treatment options may be worth considering. Botox injections have become an increasingly popular and effective option for managing TMJ symptoms caused by muscle overactivity.
Botox works by relaxing the overworked jaw muscles that contribute to grinding, clenching, and tension. This targeted treatment can reduce jaw pain, improve mobility, and offer relief from associated symptoms like headaches and ear pain.
Botox is often used when traditional methods like night guards or physiotherapy haven’t delivered the desired results. Botox for TMJ is non-surgical, relatively quick, and may offer several months of symptom relief at a time.
Compassionate Care for Long-Term Jaw Health
Managing TMJ symptoms requires a combination of self-awareness, behavioural changes, and, when needed, professional care. While everyday habits can contribute to discomfort, solutions like posture correction, stress management, and therapeutic options like Botox may help relieve strain on the joint and improve daily comfort.
For patients exploring Botox treatment for TMJ pain, the friendly and passionate team at Markham Dental Smiles offers a warm and stress-free experience from consultation through aftercare. With a patient-focused approach and a commitment to comfort, they’re here to help you move toward relief with confidence.