gum recession

I read on the "ask Andreas" forum from last year a post about swishing with sesame oil in order to cure receeding gums. Can anyone confirm that from their own experience? Has anyone had their gum tissue regrow back over the exposed base of the tooth?

My gums have been receding for the past few years now, so now it's tough to consume cold/hot/sweet foods & liquids. I tried daily swishing with liquid Bentonite clay for a couple weeks, but the loss of sensation was only temporary, and the gum tissue didn't grow back.