Jaw clenching daytime

Overview

Jaw clenching during the daytime (also called awake bruxism) is when you repeatedly tighten or grind your jaw muscles while you are awake, often without noticing. It can cause discomfort in your jaw, face, and teeth.

Yes, it is quite common. Many people experience it at some point, especially during stressful times or when concentrating hard.

It can affect adults of all ages, but it is more common in people who are under stress, have anxiety, or have certain habits like chewing on pens or gum frequently.

Symptoms

Common symptoms

• Pain or tenderness in the jaw muscles, especially in the morning or after periods of concentration
• Headaches, particularly in the temples or behind the eyes
• Worn, chipped, or sensitive teeth
• A clicking or popping sound when opening or closing the mouth
• Tired or tight jaw muscles

Symptoms in children

• Children may also clench their jaw during the day, often without pain, but it can cause headaches or earaches.
• Jaw clenching in children can sometimes be linked to stress at school or home.

Symptoms in older adults

• In older adults, jaw clenching may be related to missing teeth, ill-fitting dentures, or certain medications (ask your doctor).
• It can also worsen conditions like arthritis in the jaw joint (temporomandibular joint).

Causes

Main causes

• Stress and anxiety are the most common triggers.
• Focusing on a task, such as working on a computer or driving, can cause unconscious clenching.
• Certain habits like chewing gum, biting nails, or holding a pen in your mouth.
• Misaligned teeth or an uneven bite can contribute.

Risk factors

• Having a tense or anxious personality
• Jobs with high concentration or stress (e.g., office work, driving)
• Using stimulants like caffeine or tobacco (they can make clenching worse)
• Existing dental problems, like crooked teeth or missing teeth

When to see a doctor

See a doctor urgently if:

• If you have severe jaw pain or cannot open or close your mouth at all
• If you have swelling, fever, or redness near your jaw

Book a routine appointment if:

• If you have mild jaw discomfort that lasts more than a week
• If you notice worn or sensitive teeth, or your dentist points out signs of clenching
• If you have frequent headaches that you think are linked to your jaw

Diagnosis

A healthcare professional, such as a dentist or doctor, will ask about your symptoms and examine your jaw muscles and teeth. They may watch how you open and close your mouth.

Tests that may be done

• A dental exam to check for tooth wear or damage
• Feeling the jaw muscles for tenderness or tightness
• Sometimes a sleep study is recommended if you also clench at night (sleep bruxism)

What to expect at your appointment

Your provider will gently press on your jaw muscles and ask about your habits. They may suggest ways to reduce clenching and refer you to a dentist if needed. No needles or scans are usually required.

Treatment

Treatment focuses on reducing the clenching and relieving discomfort. Most cases can improve with self-care and simple changes.

Self-care at home

• Become aware of clenching – set a reminder on your phone to check your jaw position.
• Place your tongue gently between your teeth to keep your jaw relaxed.
• Apply a warm, damp cloth to the side of your face to relax tense muscles.
• Avoid chewy or hard foods, gum, and biting on pens or nails.
• Practice stress management: deep breathing, gentle stretching, or taking short breaks.

Medical treatments

If self-care is not enough, a dentist can make a custom-fitted mouthguard (occlusal splint) to protect your teeth and relax your jaw muscles. Physical therapy, relaxation exercises, or stress counselling may also help. In some cases, medication such as muscle relaxants can be prescribed for short-term use – talk to your doctor about options.

When is surgery considered?

Surgery is rarely needed. It is only considered if the jaw joint (temporomandibular joint) is severely damaged and other treatments have not helped.

Living with this condition

Living with jaw clenching means learning to notice when you are clenching and gently relaxing your jaw. It can become a habit, but with practice, you can retrain your muscles.

Lifestyle tips

• Reduce caffeine and alcohol, as they can make clenching worse.
• Avoid chewing gum or biting on objects.
• Set up a relaxing bedtime routine if you also clench at night.

Diet and exercise

Eat soft foods if your jaw is sore (e.g., yogurt, mashed potatoes, soups). Gentle jaw stretches can help – ask your doctor or dentist for specific exercises. Avoid wide yawning or biting into hard foods.

Mental health and emotional wellbeing

Jaw clenching is often linked to stress and anxiety, which can create a cycle: stress leads to clenching, and clenching causes pain, which adds more stress. Taking steps to manage stress, such as talking to a counsellor or practising mindfulness, can break this cycle.

Prevention

You cannot always prevent jaw clenching, but you can reduce your risk by managing stress, avoiding chewy foods and gum, and being mindful of your jaw position during the day.

Screening programmes

Regular dental checkups can help catch early signs of clenching, such as tooth wear, so you can start managing it sooner.

Complications

If left untreated

• Worn-down teeth, fractures, or increased sensitivity
• Chronic jaw or face pain
• Temporomandibular joint (TMJ) disorders, which can cause clicking, locking, or pain in the jaw joint
• Frequent headaches or earaches

Long-term outlook

The outlook is very good. Most people find relief with simple self-care or a mouthguard. With awareness and the right support, you can reduce clenching and protect your teeth and jaw.

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