This is the principal behind 'all-on-4' dental implants. I've no idea how good they are though. I've seen a few YouTube videos but you never really know if they're paid shills nowadays.
If youre already losing teeth, the more implants the better, as your bone requires that object there to not recede - and bone grafting is very expensive and hit or miss.
Take good care of your teeth, theres nothing like the real ones. If I had not worked at a huge implant office, I wouldn't believe it.