my dentist told me that the pulp of my tooth is dying and that's why I need a root canal. The thing is that I never felt any pain in that tooth (I know what it feels like when the nerve is dying, I've had a root canal on an other tooth earlier and it was terrible). I thought that my tooth is perfectly fine and I was surprised by that, my dentist's explanation was that I didn't feel any pain b/c of my body's defense. is this a good or a bad sign? what's with my body's defense?
Note: don't take me wrong, I'm happy that I fixed my tooth before it becomes painful but I'm surprised that it got so bad without giving me a warning.
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