I'm not sure if a cavity would do it or not. Something as simple as acne or razorburn could do it, though. I actually have a bit of a lymph node that I can feel in the same location (there isn't one on the other side that's palpable), but I don't think there's anything wrong with me. It's possible that some lymph nodes are just different. The ENT should be able to tell you if that's actually true.
My dentist said i had caries in many teeth can this cause the node to swell?
Thanks for replying
Its been 2 months almost since i first noticed the node. Do you know of any causes which makes it swollen for so long? Its also not painful.
Any infection can cause lymph nodes to swell, and they don't have to swell evenly. Usually, when you have a cold, the infection is symmetrical and so are they lymph nodes, but this isn't always the case.
As for your infection spreading, I think you'd feel worse if that were the case, but the ENT should be able to tell you more definitively.