Is there anyone who is well knowledgeable about implant dentures?

It seems that my mother-in-law has been wearing dentures for a while now.

They said it's time to replace my dentures this time...

After looking into implants, I found that there are many types and bone grafting is also necessary, so the cost isn't cheap.

I found out that there are implant dentures, so I'm thinking of replacing with those...

Will there be a slight difference in price?

There isn't much difference between getting an implant when chewing or using implant-supported dentures, right?