enter image description here

Can someone tell me how to spot a cavity on this image?

What I have found so far is that it is supposed to be darker area. But I have trouble recognizing it in real x ray image.

  • Wisdom tooth coming in on the lower left? (I'm just curious, this isn't where I think the cavity is or anything)
    – L.B.
    Commented Jun 26, 2017 at 15:59
  • 1
    @L.B. Most probable. The one on the upper left has either already been removed or cannot be seen on this x-ray...
    – Narusan
    Commented Jun 26, 2017 at 18:27
  • It's pretty obvious once you see it. Bottom row, second tooth from the front, at the gum line.
    – Carey Gregory
    Commented Jun 26, 2017 at 22:09

2 Answers 2


Bottom row, second from the front, right at the gum line.

enter image description here

See the darkened wedge-shaped area on the right edge of the tooth in the enlargement below? That is exactly what it looks like: a hole in the enamel of the tooth. That is what a cavity is and it's what it looks like on x-ray.

enter image description here


I'm not a specialist but I notice something at the top of the 4th tooth from the top side. Maybe there's the cavity

  • I, too, have no idea what I'm talking about, but noticed the same thing.
    – Jason C
    Commented May 27, 2017 at 18:02

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