I have, but to be honest, I think I found out more about this online than from dentist. Before I even went to dentist, I already knew what he was gonna say. So dentist didn't really help much. I wanna get professional cleaning, too. However, my gums are so incredibly sensitive, that even slight touch makes them bleed, especially in the receding part. This morning, after brushing, I noticed that there was still a bit of food remaining above one tooth, where the gums start, so I I just gently touched the pocket area with the very tip of my nail (after throughly washing my hands, of course) and it started to bleed. And when I say "gently", I, I was literally as gentle as possible. So now I have 2 tiny "spots" on that place, where it bled.