“Who is a candidate for mini dental implants?”

Mini implants are designed for patients who have minimal alveolar bone. they needed to be joined for more stability and depending on the bone structure and occlusion, the prognosis of how long they can stay varies! Consider mini implants as a temporary measure at best! For more info on mini tooth implants click here:
https://celebritydentist.com/dental-implants/

Anyone that has missing teeth

Mini dental implants are generally short-term fixes for long-term problems. It's a bit like using 2x2's to build a home instead of 4x4's. 2x2's are a less expensive alternative initially, but given your age, you will need something that could potentially be needed for 60-70 years. It is unlikely that mini dental implants will last that long. My recommendation is that if you do not have enough bone to support regular-sized dental implants, bone can be added. I encourage you to have a long-term solution to address a long-term problem. In the end, it will cost less in time, potential problems, and money.