Can a Sinus Infection Cause Tooth Pain? Here’s What You Should Know

Posted October 18, 2025 By Dr. Ashil S, Chitra Multi Specialty Dental Centre

If you’ve ever felt a dull, aching pain in your upper teeth during a cold or after battling a sinus infection, you’re not imagining things. Many people are surprised to learn that sinus infections can, in fact, cause tooth pain — particularly in the upper back teeth. While it might feel like a dental problem, the real cause could be something going on in our sinuses.

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How Are Sinuses and Teeth Connected?

The human skull contains several sinus cavities, and the maxillary sinuses are the ones most relevant when it comes to tooth pain. These sinuses are located just above your upper jaw, right over the roots of your upper molars and premolars. When you develop a sinus infection (sinusitis), these cavities become inflamed and filled with mucus. This creates pressure inside the sinus, causing discomfort or pain. This type of pain often feels like a deep, dull ache and can affect more than one tooth at a time.

Signs Your Tooth Pain Might Be Sinus-Related

It’s not always easy to distinguish between a genuine dental issue and sinus-related tooth pain, but there are a few signs to look out for:

• • Pain or tenderness in the upper back teeth
• • Sinus pressure or facial pain, especially around the cheeks and eyes
• • No visible dental issues like cavities or gum swelling

If you’re experiencing these symptoms, especially during or after a cold, it’s quite possible that your toothache is related to your sinuses.

What Can You Do About It?

First and foremost, if you’re experiencing persistent tooth pain, it’s important to have it checked by a dental professional to rule out underlying dental problems like cavities, gum disease, or infection. However, if your dentist confirms that your teeth are healthy, you may be dealing with sinus-related discomfort.

When to See a Dentist

Tooth pain should never be ignored. Whether the pain is coming from your sinuses or an actual dental problem, it’s crucial to get a professional evaluation to avoid complications.

At Chitra Multi Speciality Dental Clinic, we understand how interconnected dental and sinus issues can be. Our experienced team provides expert diagnosis and care to help you find relief, whether your pain is tooth-related or not.

We’re here to serve you at our branches in Sreekaryam and Pattom, Trivandrum, with state-of-the-art technology and compassionate care.

Let us help you get to the root of your tooth pain.