Chunks I'm assuming of nasty tartar fell off my teeth. My teeth are still there. These teeth had SEVERE receding gums. With those pieces gone, my gums are no longer receding. They're red but not bleeding, too the pieces were kinda gray. I stopped pulling for a couple days though because the detox was causing some major tooth sensitivity. Is this normal? The tartar falling off?

ETA I was due for a deep clean on both sides I my mouth I've not done yet. Scheduling issues. Dentist said with my gums receding so bad she couldn't tell if she needed to remove those teeth too. (I'm also missing some back molars, surgery was awhile ago due to infections that would've killed me).