If you’ve ever felt a sharp twinge in your teeth while sipping a cold drink or enjoying a hot meal, you’re not alone. Tooth sensitivity is a common dental concern that affects millions of people. It can range from occasional discomfort to consistent pain that interferes with daily life. Understanding what causes tooth sensitivity—and how to manage it—can help you find relief and protect your oral health.
What Is Tooth Sensitivity?
Tooth sensitivity occurs when the underlying layer of your tooth, called dentin, becomes exposed. Dentin contains tiny tubules that connect to nerve endings inside the tooth. When exposed to temperature changes, sweet or acidic foods, or even brushing, these tubules can trigger pain or discomfort.
This exposure can happen for a number of reasons, and identifying the cause is key to choosing the right treatment.
Common Causes of Tooth Sensitivity
Worn Tooth Enamel
Enamel is the hard, outer layer of your teeth that protects the softer dentin underneath. Over time, enamel can wear down from aggressive brushing, acidic foods and drinks, or natural aging, leaving the tooth more vulnerable to sensitivity.
Gum Recession
When gums pull away from the tooth—often due to gum disease or brushing too hard—it can expose the tooth root. Unlike the crown of the tooth, the root doesn’t have enamel and is more sensitive to stimuli.
Tooth Decay or Damage
Cavities, chipped teeth, or worn fillings can all lead to sensitivity by exposing dentin or the nerve inside the tooth. Even minor damage can cause discomfort if left untreated.
Grinding Your Teeth (Bruxism)
Clenching or grinding your teeth can wear down enamel and create small cracks, both of which can lead to sensitivity. Many people grind their teeth at night without realizing it.
Recent Dental Work
Some people experience temporary sensitivity after dental treatments like fillings, crowns, or cleanings. This usually goes away on its own, but it’s worth mentioning to your dentist if it persists.
How to Manage and Reduce Tooth Sensitivity
Use a Toothpaste for Sensitive Teeth
Specially formulated toothpastes contain ingredients that help block the sensation from reaching the nerve. Regular use can significantly reduce sensitivity over time.
Switch to a Soft-Bristled Toothbrush
Brushing with a soft-bristled toothbrush and gentle pressure can prevent further enamel erosion and protect your gum line.
Avoid Acidic Foods and Drinks
Citrus fruits, soda, wine, and certain sports drinks can weaken enamel and contribute to sensitivity. Try to limit exposure and rinse your mouth with water afterward.
Consider Fluoride Treatments
Your dentist may recommend professional fluoride treatments to strengthen enamel and reduce sensitivity. There are also over-the-counter fluoride rinses that may help.
Treat Underlying Issues
If your sensitivity is caused by a cavity, cracked tooth, or gum disease, treating the root cause is essential. Your dentist may suggest a filling, dental bonding, or periodontal care depending on the diagnosis.
Wear a Night Guard
If grinding is a factor, a custom night guard can protect your teeth from further wear and reduce symptoms of sensitivity.
When to See a Dentist
Occasional sensitivity isn’t always a cause for concern, but if the discomfort is frequent, worsening, or interfering with your daily activities, it’s time to visit your dentist. They can perform a thorough exam to determine the cause and develop a personalized plan to relieve your symptoms.
At The Dental Office Encino, we take tooth sensitivity seriously and work with each patient to find the right solution for lasting comfort and oral health.
