(Concern) Cold Sensation

Since childhood

There is a gap between the tooth and the gum.

It seems like my gums have receded and caused me to sink.

Maybe that's why I feel so empty.

Eat slightly cold fruit.

Even after drinking water, the pain persists.

I'm afraid to eat anything.

I also tried resin.

Not perfect

Not long from now

The pain has come back again.

Really

I want to change this entire thing.

I'm so jealous of people with healthy gums.ㅠㅠ

What is the most appropriate treatment for cold sensitivity?

What would be the most effective?