My wife bought new toothbrush heads on her way home from work today.
They didn’t fit. She bought the “Oral B IO” heads, but we have a “regular” Oral B toothbrush, not the Shiny Fancy IO design.
And this is after she bought replacement heads last week at another store – which turned out to be “compatible for” a different brand :(
Ugh.
are you putting alot of pressure on it, you get use to it after a few uses. i felt wierd after using sonic for the ifrst time, but after a few uses your gums and teeth desensitizes to it. unless you are somehow trying to brush your gums.