Dental Articles - Thornhill

Do you wake up with a sore jaw, dull headache, or teeth that feel tired and sensitive? These symptoms are common among adults in Thornhill and across York Region — and they are often linked to teeth grinding (bruxism) or problems with the temporomandibular joint (TMJ), sometimes grouped under the term temporomandibular disorder (TMD). At Promenade Village Dental, we regularly evaluate jaw discomfort and help patients find practical ways to protect their teeth and ease strain on the jaw muscles and joints.

Understanding Bruxism and TMD

Bruxism is the habit of clenching or grinding the teeth. It can happen during the day, often during stress or concentration, or at night while you sleep. Because nighttime grinding occurs unconsciously, many people only discover the problem when a partner hears grinding sounds or when a dentist notices wear on the teeth.

TMD refers to a group of conditions affecting the jaw joints and the muscles that control chewing. Symptoms can overlap with bruxism and may include jaw pain, clicking or popping when opening the mouth, limited opening, ear discomfort, and headaches. The exact cause is not always clear; factors may include muscle tension, joint changes, bite alignment, arthritis, injury, or prolonged clenching.

Bruxism and TMD are not always the same condition, but they frequently occur together. Clenching and grinding place extra force on teeth, muscles, and joints — which can worsen pain over time if left unaddressed.

Common Signs You May Be Grinding or Clenching

Symptoms vary from person to person. You or your dentist may notice:

• Jaw soreness or stiffness, especially in the morning
• Frequent headaches or tension around the temples
• Tooth sensitivity without obvious decay
• Flattened, chipped, or cracked teeth
• Damage to dental restorations such as fillings or crowns
• Facial muscle fatigue or pain near the ears
• Disrupted sleep for you or your partner

If you experience severe pain, sudden inability to open or close your jaw, or swelling, contact a dental professional promptly. Our office provides emergency dental care for urgent concerns when same-day attention is needed.

Why a Custom Night Guard Can Help

A night guard (also called an occlusal splint or bite guard) is a removable appliance worn over the teeth, usually on the upper or lower arch. When properly designed, it creates a barrier between the upper and lower teeth so grinding forces are absorbed by the appliance rather than wearing down enamel.

Over-the-counter boil-and-bite guards are widely available, but they are often bulky, poorly fitted, and may not distribute pressure evenly. A custom night guard is made from impressions or digital scans of your teeth. Your dentist can adjust the thickness and shape to match your bite and treatment goals — whether the primary aim is protecting teeth, reducing muscle strain, or supporting joint comfort.

Our TMD and bruxism night guard services include an exam to assess your teeth, joints, and muscles, followed by a guard tailored to your mouth. Many patients find that consistent use helps reduce morning jaw soreness and limits further tooth wear, though individual results depend on the severity of grinding and other health factors.

What to Expect During Evaluation and Fitting

Your visit typically begins with a discussion of your symptoms, sleep habits, stress levels, and any history of jaw injury. The dentist will examine your teeth for wear patterns, check how your jaw moves, and may recommend X-rays if needed to evaluate the joints.

Impressions and Fabrication

Accurate models of your teeth help the dental lab or in-office equipment produce a guard that fits securely without feeling overly tight. A well-fitted guard should stay in place during sleep without significant bulk that interferes with breathing or comfort.

Follow-Up and Adjustments

After you begin wearing your guard, a short follow-up visit allows your dentist to confirm the fit and make minor adjustments. Night guards require regular cleaning and periodic replacement as they wear down — your dental team can advise you on care and when to schedule a replacement.

Protecting Teeth That Are Already Worn or Damaged

Long-term grinding can weaken teeth and existing restorations. If a tooth is significantly worn, cracked, or structurally compromised, additional treatment may be recommended alongside a night guard. Options such as dental crowns or bonded repairs can restore strength and function while the guard helps prevent further damage.

Your dentist will explain which treatments are appropriate for your situation and how they fit into a long-term plan for oral health.

Complementary Strategies for Jaw Comfort

Night guards are one part of a broader approach. Depending on your needs, your dentist may also suggest:

• Stress-management techniques, since tension can increase clenching
• Avoiding chewing gum or hard foods that overwork the jaw
• Applying moist heat or gentle stretching as directed for muscle soreness
• Addressing sleep issues or sleep apnea, which can be associated with grinding in some patients — referral to a physician may be appropriate when indicated
• Daytime awareness exercises to keep teeth slightly apart and jaw relaxed

Athletes who clench during sports may benefit from a separate custom sports mouthguard designed for impact protection rather than nighttime wear. Using the right appliance for each activity helps ensure safety and comfort.

When to Seek Care in Thornhill

Occasional jaw tension is common, but ongoing pain, increasing tooth wear, or broken restorations deserve professional attention. Early intervention can help preserve tooth structure and may improve daily comfort.

Promenade Village Dental is located at 7700 Bathurst Street, Suite 100 in Thornhill — a convenient location for patients from Vaughan, Richmond Hill, and surrounding York Region communities. Dr. Shima Parhizgar and our team focus on clear explanations, conservative treatment options, and care tailored to each patient.

Schedule a Consultation

If morning jaw pain or suspected grinding is affecting your sleep or your smile, a dental evaluation is a sensible next step. Call us at (905) 882-8818, email [email protected], or request an appointment online. We welcome new patients and can discuss whether a custom night guard or additional treatment is right for you.

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Dentist Thornhill