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Why Your Teeth Hurt With Hot or Cold: Common Causes and When to See an Ottawa Dentist

Do you feel a sharp or lingering pain when drinking hot coffee or eating ice cream? If so, you may […]

Ottawa Dental CentreMarch 30, 20265 min readBlog
Why Your Teeth Hurt With Hot or Cold: Common Causes and When to See an Ottawa Dentist
Do you feel a sharp or lingering pain when drinking hot coffee or eating ice cream? If so, you may be experiencing tooth sensitivity. While it is a common issue, it should not be ignored. At Ottawa Dental Centre, we regularly help patients manage tooth pain with hot and cold, and in many cases, it is a sign of an underlying dental concern.
Understanding the most common tooth sensitivity causes and knowing when to seek sensitive teeth treatment in Ottawa can help you protect your smile and prevent more serious problems.

What Is Tooth Sensitivity?

Tooth sensitivity occurs when the protective outer layer of your teeth, called enamel, becomes worn down or when the gums recede, exposing the root of the tooth. Beneath the enamel is dentin, which contains tiny channels that connect directly to the nerve.
When exposed, these channels allow heat, cold, or even sweet foods to trigger discomfort. This often presents as sudden tooth pain with hot and cold, which may be mild or intense depending on the severity of the issue.

Common Tooth Sensitivity Causes

Enamel Erosion

Enamel protects your teeth from external stimuli. When it wears down, the dentin becomes exposed, leading to sensitivity.

Common causes include:

  • Frequent consumption of acidic foods and beverages
  • Brushing too hard or using a hard‑bristle toothbrush
  • Acid reflux or stomach acid exposure

Since enamel does not regenerate, early care is essential.

Gum Recession

Gum recession exposes the root surfaces of your teeth, which are more sensitive than enamel‑covered areas.

This can be caused by:

  • Gum disease
  • Aggressive brushing
  • Natural aging

Gum recession can also increase your risk of cavities and other dental issues.

Tooth Decay and Cavities

Cavities create openings in the enamel that allow temperature changes to reach the inner layers of the tooth.

Signs include:

  • Sensitivity to hot, cold, or sweet foods
  • Pain when chewing
  • Visible holes or dark spots

If you notice these symptoms, visiting a dentist for sensitive teeth in Ottawa can prevent the problem from worsening.

Cracked or Damaged Teeth

Even small cracks can expose dentin and lead to discomfort when consuming hot or cold foods.

Symptoms may include:

  • Sharp pain when biting
  • Sensitivity that comes and goes
  • Discomfort when releasing pressure

A professional exam is necessary to diagnose and treat cracks effectively.

Teeth Grinding or Clenching

Grinding your teeth can wear down enamel over time, increasing sensitivity.

This habit may also cause:

  • Jaw pain
  • Headaches
  • Worn or flattened teeth

A custom night guard can help protect your teeth and reduce symptoms.

Worn Dental Restorations

Old fillings, crowns, or other dental work can wear down or become loose, exposing sensitive areas of the tooth.

If you notice sensitivity around a previously treated tooth, it may be time for an evaluation.

When Should You See a Dentist in Ottawa?

While occasional sensitivity may not require urgent care, persistent or worsening symptoms should not be ignored. You should visit a dentist for sensitive teeth in Ottawa if you experience:

  • Sensitivity that lasts for several days or weeks
  • Increasing pain or discomfort
  • Pain when biting or chewing
  • Swelling or redness in the gums
  • Sensitivity that interferes with daily activities

Early treatment can prevent minor issues from becoming more serious.

How We Treat Sensitive Teeth at Ottawa Dental Centre

At Ottawa Dental Centre, we provide personalized, sensitive teeth treatment in Ottawa based on the underlying cause of your discomfort.

Treatment options may include:

  • Fluoride Treatments – Fluoride strengthens enamel and helps reduce sensitivity.
  • Desensitizing Toothpaste – Specialized toothpaste can block nerve pathways and reduce discomfort over time.
  • Dental Bonding or Sealants – These treatments cover exposed dentin and protect sensitive areas.
  • Gum Disease Treatment – If gum recession is caused by periodontal disease, treating the condition can improve gum health and reduce sensitivity.
  • Restorative Procedures – Fillings, crowns, or other treatments may be needed to repair damaged teeth and eliminate pain.
  • Night Guards – For patients who grind their teeth, a custom night guard can prevent further enamel wear.

Tips to Reduce Sensitivity at Home

In addition to professional care, there are simple steps you can take to manage tooth pain with hot and cold:

  • Use a soft‑bristle toothbrush and brush gently
  • Choose toothpaste designed for sensitive teeth
  • Avoid acidic foods and beverages
  • Rinse your mouth with water after eating
  • Maintain consistent oral hygiene habits

These practices can help reduce discomfort and protect your teeth.

Preventing Tooth Sensitivity

Prevention is key to maintaining a healthy smile. To reduce your risk:

  • Brush and floss daily
  • Visit your dentist regularly for checkups and cleanings
  • Address dental issues early
  • Avoid habits that damage enamel

Working with a trusted dental team ensures your teeth remain strong and healthy.

FAQs About Tooth Sensitivity

Q: Is tooth sensitivity permanent?
A: Not always. With proper care and sensitive teeth treatment in Ottawa, many patients experience significant improvement.

Q: What is the most common cause of sensitivity?
A: Enamel erosion and gum recession are among the most common tooth sensitivity causes.

Q: Can sensitive teeth heal on their own?
A: Mild cases may improve, but underlying issues often require professional treatment.

Q: Should I avoid hot and cold foods?
A: It is better to treat the cause rather than avoid certain foods long‑term.

Q: When should I seek urgent care?
A: Seek care if sensitivity is severe, persistent, or accompanied by swelling or pain.

Get Relief from Tooth Sensitivity in Ottawa

Tooth sensitivity can interfere with your daily life and enjoyment of food and drinks. More importantly, it may signal an underlying dental issue that needs attention.
At Ottawa Dental Centre, we provide expert care for patients experiencing tooth pain with hot and cold. Our team offers customized solutions to address the root cause and restore your comfort.
If you are looking for a trusted dentist for sensitive teeth in Ottawa, contact Ottawa Dental Centre today to schedule your appointment. With the right sensitive teeth treatment in Ottawa, you can enjoy your favourite foods again without discomfort.