Studies for Swedish snus on the effects on gums and teeth (not many that I've found, since most look at general health, cardio disease and cancers) show no associated problems with gum disease or tooth decay, unlike studies on dip/chew, which are linked to sugars and high TSNA's. Gum irritation is normally caused by salt content and mint oils used. Overall, Swedish snus' only negative on health is that it's addicting due to the nicotine.
I'm not attacking snus TV. My gums started receding shortly after the day I started ecigs and quit smoking. I never had a problem in 35 years of heavy smoking. Looking back, I probably should have walked away from ecigs a year ago. I was so happy to not be smoking that I ignored everything else, and was so busy exploring and shopping and modding I didn't think about using it to try to quit all together.
I had been following the "Are we getting it?" thread last xmas when a family crisis fell on top of my annual holiday anxiety. I started exploring snus but wound up supplementing with a few analogs too...
Anyway, I got a white patch on my upper gum pretty quick, and yes I have read that they go away, and it did when I stopped the snus. But soon I was smoking a whole pack some days, then stains on my teeth, a little crackle in my chest at night, ashes, smell, butts, $$$..... Quit them twice in the spring. Then the dentist found the pockets. They had not measured them since just before I quit smoking last April.
So now I'm still using the ecig and trying straight VG to try to shake the brain fog like Vaporer recommended on a thread. Using a snus or stonewall when I'm about to go buy a pack to make my brain work.
The gum issues may be from sucking so damn much trying to get auto batteries work! I parked those too. I just need to sort it out. Whatever the cause, I am pretty sure snus won't help matters. That doesn't mean I'm not going to use it.