this review title is: updated review beware and the content is: it is easy to use fantastic for removing plaque after about months of use the plastic holding the metal tip split and the metal tip wound up in my mouth had i accidentally swallowed it and not able to vomit it out i would have had to go to the emergency room.there are other information for this review, one is this reviewer did purchase it and the other is 0 people think this review is helpful.