Good morning, @sando. There are pros and cons to both types of partial dentures. Standard partial dentures have been around the longest. They’re generally well tolerated by users and are less expensive than the flexible partials.

I found a good article for you that actually compares traditional partials to the flexible partials and it has a pro & con list! This should be helpful in allowing you to read about the differences.
I can’t make a decision for you, so talk it over with your dentist to see what would be the better option for you. But long term, a traditional partial has advantages of easily being adjusted and if more replacement teeth ever need to be added, that’s relatively easy. Not something that can happen with a flexible plate at this time.

Here’s the article for you:
https://www.dentaly.org/us/dentures-false-teeth/flexible-dentures/
After your visit with your dentist, if you have questions or need clarification about something, let me know. I’ll try to help you out if I can. But as for osteo meds, again, this is an area where I’ve had no personal experience so I really have nothing I can offer in that direction.

There’s a discussion started by @laurensb several months ago about exactly the same subject…
What comes after Evenity?
https://connect.mayoclinic.org/discussion/what-comes-after-evenity/
If you haven’t already, this would be a great conversation for you to join!
Let me know when you have your dental appointment and we’ll go from there, ok?