Tooth Sensitivity or a Cavity? How to Tell the Difference

A sharp twinge when you sip something cold or bite into something sweet can make you wonder what is happening with your tooth. Tooth sensitivity and cavities can cause similar discomfort, but they are not the same problem. Knowing some of the differences can help you understand what your tooth may be telling you and when it deserves a closer look.

At Drs of Smiles in Mesa, AZ, Dr. Glenn LeSueur provides experienced general and cosmetic dental care backed by his USC dental education and advanced training at the Las Vegas Institute for Advanced Dental Studies (LVI).

Tooth Sensitivity vs. a Cavity: What’s the Difference?

Here’s a quick comparison to help you understand how tooth sensitivity and a cavity can differ:

Factor	Tooth Sensitivity	Cavity
Cause	Worn enamel or exposed dentin	Tooth decay that damages enamel
Common Triggers	Hot, cold, sweet, or acidic foods and drinks	Sweets, temperature changes, or biting
How It Feels	Usually a quick, sharp sensation	Sensitivity or pain that may become more noticeable
How Long It Lasts	Often fades after the trigger is gone	May linger, return, or worsen over time

Signs Your Sensitivity Could Be a Cavity

Certain changes can suggest that your sensitive tooth needs to be checked for decay, including:

• Sensitivity that repeatedly occurs in one tooth
• Pain when you bite or chew
• Discomfort after eating something sweet, hot, or cold
• A visible dark spot, pit, or hole in the tooth
• A toothache that occurs without an obvious trigger

Keep in mind that a cavity can develop without noticeable symptoms, especially in its early stages. A dental examination and X-rays can help identify decay that you cannot yet see or feel.

When Should You See a Dentist for Tooth Sensitivity?

Sensitivity that keeps returning, grows stronger, or focuses on one tooth is worth having examined. Finding the cause early can also help keep a small dental concern from becoming a larger one. When decay progresses deeper into a tooth, treatment can become more involved.

Get Answers About Your Sensitive Tooth at Drs of Smiles

You do not have to keep guessing why your tooth hurts. At Drs of Smiles, we can examine your tooth, identify the source of your discomfort, and discuss suitable care to help protect your smile.

For cavity treatment or help with tooth sensitivity in Mesa, AZ, call 480-834-6991 to book an appointment with Drs of Smiles.