I'm looking into dental implants, but I'm not sure about the criteria.

My teeth have gotten really bad, so I'm looking into dental implants.
I found that the quoted costs and treatment durations varied from hospital to hospital, more than I expected.

At first, I thought I just needed to look for places with cheap prices, but
I looked it up and found that things like gum condition, whether a bone graft was performed, and aftercare are also important, so I'm even more confused.

Since you have to use implants for a long time once you get them.

I wonder if it is a place that takes good care of periodontal health, rather than just offering a cheap price.
I think I should also check if they provide regular aftercare following the procedure.

For those of you who have had dental implants, what criteria did you use when choosing a hospital?
I am wondering where I should place more weight, cost or expertise.