Any dentists out there - are these all cavities??!!?

My little sister had to do a project for school about teeth and came home with one of those little dental mirror things and a torch and wanted to look at my teeth. So I let her, but then she said that a lot of my teeth had black areas on them, so I had a look and she's right! (she's only 8.....I sense a budding dentist in the family!)





Anyway, in practically all of my back teeth, top and bottom there are black areas. It's in the biting surface of the teeth, in the natural crevices. Some of the teeth also have black lines which continue onto the cheek side or the tongue side of the mouth.





Are these cavities??? Because if so, they're in basically ALL of my teeth!!!! Now I admit, I haven't seen a dentist in a while (maybe 4 years?), but I do take care of my teeth and I haven't really got any pain from them. I'm 21, and I've only ever had 2 cavities in the past.

Any dentists out there - are these all cavities??!!?
yes they are all probably cavities.
Reply:Get to a dentist
Reply:Sounds like surface cavities. You need to get them checked out so they don't progress into bigger problems!
Reply:some of them can be. the best way to determine this is by a thorough examination. there is an instrument called explorer (pointy one), that, if sticksto the stained areas , it is a cavity
Reply:CAVITIES!!!!!!!!!!!!!!!!!!!!!!GET TO A DENTIST NOW!!!!!!!!!!!!
Reply:I am not a dentist, but I am a dental assistant. Sometimes, you can have stains build up on the surfaces of the teeth that look a lot like a cavity. The dentist will check with a sharp instrument to see if it "sticks" in the black spot. If it does stick, then it is most likely decay. If not, it's stain. The only real way to find out is to see your dentist. Because you are having some pain, it leads me to believe that some of those areas may be cavities. Always see your dentist for the best advice concerning your dental health.
Reply:dark areas in the teeth are good indicators of decay but it may be stain especially on the occlusal or biting surface, the pits and fissures , the grooves in the teeth have to be soft to actually be decayed, yes you need to see a dentist, i am a registered dental assistant and that is the best advice