Treatment method for cracked teeth

Last year, I visited the dentist for a cleaning, and the dentist said that a molar had a small crack.

Initially, there was no major inconvenience, and I was told to continue using it despite the crack.

The person with a crack has already had cavity treatment.. So every time they chew on the molar side, they feel a bit anxious?!

Is there something else that's uncomfortable? So far, I haven't had any severe toothache or pain, but still, from time to time, last year...

The story I heard comes to mind, and I can't help but feel uncomfortable.

Are there any people who have had their cracked teeth treated? I'm curious whether they had crowns or implants.

Please share the method.