(Concern) Scaling frequency

How many times a year do you get scaling?

It didn't hurt when I received scaling before.

I've been in a lot of pain for several years now.

I go once every six months, but it hurts when I receive it.

It feels like I should be cautious. So I keep postponing and now I go once a year. That's why I feel like I get more tartar buildup. Even if I get scaling once a year

Is it okay? I need to get a scaling.

I postpone because I am sick... Even if I set the cycle to one year.

I'm wondering if there might be any abnormalities.