My hollistic dentist told me that any power toothbruth will inevitably cause gum recession. I'm 25 years old and have been using a sonicare for a year and an oral B triumph and 9000 series for 4 years before that and my gum recession is worse than most 35 year olds. I started oil pulling 3 days ago in hopes that it may help.
I'm not sure the sonicare did it, but I'm not ruling anything out.