This inexpensive Care 600 is the right choice (we have several) - she cleans well and signaled vibrant the intervals. These two functions are necessary or useful. Not even when you have certain dental problems - the features of the more expensive models I do not consider necessary. What helps me a quieter brush or feels better, or even one that makes the contact pressure indicated? If I have sensitive (easily bleeding) gum, then I realize itself very quickly how much I should press the brush. I would rather try in such a case may a different brush - which brings in my opinion much more. Is much more important to keep the teeth clean during the day - especially after every meal with a strong possible oral irrigator. Note: If you have never used a good irrigator will be surprised how much more depends after between his teeth - I repeat - after having brushed his teeth.