How to Spot a Cavity Early: Signs to Watch For and When to Book a Visit

Many cavities give no signal at first, so it helps to know what to look for. This guide covers gentle checks you can do at home and when to call your dentist.

Early signs to look for

1. Chalky white spots on a tooth, often near the gumline.
2. Brown or dark spots that don't brush away.
3. Sensitivity to sweets, hot or cold. Our tooth sensitivity guide explains common causes.
4. Food catching in the same spot between teeth.
5. A rough edge or small pit you can feel with your tongue.

How to check at home

1. Brush and clean between your teeth first.
2. Use a bright light and a mirror.
3. Look at the chewing surfaces and along the gumline.
4. Note anything new and mention it at your next visit.

A home check can't replace a dental exam. Cavities between teeth are hard to see, which is why we use low-dose digital X-rays to find them early. You can read more about our dental technology.

When to book

Book a visit if a spot lasts more than a few days, sensitivity keeps returning, or a tooth aches on its own. Early care is usually simpler and more comfortable. If you're new to us, see our new patient information, or visit morganheightsdental.com.