@gmdb I’m aware of the normal issue of some gummies due to age, however, my observation is that in the 5+ months I’ve been on prednisone, the recession is actually noticeable to me. Also, the increased sensitivity is another side effect of gum recession, right? I asked my dentist at my cleaning appointment if there was anything I could do to prevent this and he just said that medication induced recession was difficult and encouraged extra time flossing, brushing, etc. I’d already been doing that, so not really anything to be done, I guess.

@gmdb

Prednisone can do both. It affects people differently. It can swell and then recede the gums (or any tissue).
Gum tissue can/will recede with age FASTER on prednisone. I developed severe bone loss due to developing deep gum cavities collecting plaque and bacteria in less than a year. There were no visible signs outside the gum. It was all deep down. Periodontist thinks prednisone played a factor.
It could also be because of minute cracking due to grinding my teeth (a listed side effect of prednisone). I have to get two teeth removed - one above, one below where they prominently meet and grind in the back. Nowhere else in my mouth. She even said it seemed like the prednisone played a big factor.
I don't care what the original poster says - prednisone contributes to cavities and gum disease. If he was ever on the drug himself he would know the side effects which could very likely contribute (which he seemed unaware of). Altered mouth biome, increased acidity, bone density loss/osteoporosis, swelling/shrinking of gums, more frequent snacking and grinding of teeth - to name just a few