@crema Wow that's unfortunate timing but it's so hard to deal with dental work and osteoporosis meds.
Before guessing at possible courses of action I'm wondering if you had a DXA before and after Evenity? If so you could have another one now to see where you are at. There is no harm imo in having DXAs more frequently in unusual situations like this. Also are you tracking blood markers as that could be useful to get an idea of how rapidly you might be losing gained bone.

Here's some initial thoughts on a possible course of action. I do realize there are issues with how helpful your doctors will be and insurance and out of pocket costs. I'm ignoring those for now.
0. Over the course of a year one would likely lose all their Evenity gains.
But after a year off from Evenity one can do Evenity again and have virtually the same gains.
1. Forget anti resorptives for now since you just had the extraction and implant.
2. Take a bone builder specifically Forteo until you are past the dental work. Forteo being known for being safe from jaw issues and maybe protective even. I have only read a tiny bit about this so don't take this as a for sure valid information.

Hopefully others will have some suggestions though you might want to do a separate post on your dilemma.