I said I'd never sell mine (almost a dead ringer) but it sat in a case forever as I was too precious about it.
Wish I hadn't sold it though...
(but then there are about 10 others I could say that about)
I had a similar issue with a dent on an acoustic guitar. A steam iron and damp cloth worked wonders (though not 100% - there was an "impact crater" left over).
IIRC there are numerous videos on YT
I've been reading a lot of scientific reports recently. Found this one interesting and relevant to the forum.
https://www.treehugger.com/music-brain-sync-audience-musician-4859388