It seems like every 6 months, I have “apparently harmless” black things on my teeth that always has to be removed. No signs of tooth decay so far (unless my dentist is hiding something). My bottom teeth are fine, but my top teeth, especially the tippy top part, always turns black. Is my brushing method wrong, then? I always have these things for 5 months without any harm (unless again, my dentist is hiding some serious illness from me), so I don’t know if they’re cavities or not. Online doesn’t help, either. It just tells me to brush better but I AM! I’m losing my mind. This has been a problem ever since I was in 6th grade, and now that I’m a senior I need to get to the bottom of this.

If a photo is needed I can take it. It’s 3am now though for me so cya