What Causes Tooth Sensitivity & How to Treat It
Have you ever felt a shooting pain when biting something cold?
That sharp jolt isn’t just annoying. It may be a signal – a helpful red flag that alerts you to a potential problem. You could be alarmed. Or, you could understand the reasons behind tooth sensitivity and know that your dentist can treat it. At McKinney Dental, we help adults uncover the root cause and take the right next step.

What Tooth Sensitivity Feels Like
Tooth sensitivity usually starts as a short burst of pain. It happens when you eat or drink something hot, cold, or sweet. Some people notice discomfort while brushing. Others feel pain during a deep breath of cold air. The pain comes quickly and fades, but it often returns. That makes daily routines harder than they should be.
Tooth sensitivity can show up in one tooth or across several. For many adults, it starts slowly and worsens over time. The earlier you do something to alleviate it, the more likely it is for us to fix it quickly.
What Causes Tooth Sensitivity & How to Treat It
The most common cause is enamel loss. Enamel, the outer protective layer of your teeth, can thin. When that happens, it exposes the softer layer underneath. That layer, called dentin, easily communicates temperature to the nerve. Even a small opening can cause sharp pain.
Another major cause is gum recession. When your gums pull back, the roots of your teeth become visible. Roots don’t have enamel, so they react more strongly to temperature changes. Tooth grinding, often during sleep, can also wear down enamel. That pressure causes sensitivity and can lead to cracks.
Some patients have small cavities, chipped teeth, or failing fillings. These are openings, gaps that let outside temperatures affect the nerve. Whitening treatments may also cause short-term sensitivity. In each case, the treatment depends on the cause.
When to Talk to a Dentist
Mild sensitivity might come and go. However, if pain is constant or gets worse all of a sudden, you should do something about it. One sensitive tooth may mean a cavity or fracture. Sensitivity across many teeth could point to enamel wear or gum disease.
If your gums look uneven or your teeth seem worn, let your dentist take a closer look. At McKinney Dental, we examine your teeth, ask about your habits, and check for root exposure or hidden damage.
How McKinney Dental Can Help With Tooth Sensitivity
We start with a complete exam. Once we know the cause, we build a plan that will work. Fluoride treatments often help. They strengthen your enamel and reduce nerve exposure.
If grinding is the issue, we may fit you with a night guard. That stops the pressure and prevents further wear. We may also recommend desensitizing toothpaste or in-office treatments. If needed, we can restore damaged teeth with protective coverings or sealants.
We explain every step clearly and track your progress closely. We don’t just want to get you out of pain – we want to fix the problem. It’s the only way back to comfort.
Tips for Easing Sensitivity at Home
- Use a soft toothbrush and gentle pressure when you brush.
- Switch to a toothpaste made for sensitivity.
- Stay away from acid-heavy drinks like soda and citrus juice. (If you do have them, swish water in your mouth water when you’re done.)
- Floss gently once daily for healthy gums.
- Skip whitening products until your sensitivity goes away.
- Don’t stop brushing just because it hurts – stopping can make things worse.
Find Lasting Relief With McKinney Dental
Tooth sensitivity isn’t something you should ignore. If you’ve noticed pain, even a small amount, it’s time to take action. Call McKinney Dental today. We’ll do our best to help you find the cause, ease the pain, and give you a smile that can withstand cold drinks!