- In the middle (there are three circles of plastic hairs) they have only two small tufts instead of four for the original but this - does not interfere with anything.
- They are slightly harder than the original but we made it easily (except of course if you are very sensitive gums So in this case prefer the "Sensitive" You can also use a "soft" program if available.. on your electric toothbrush to compensate.
- No hair loss so far.
- Assistance enough: do not forget to let the electric toothbrush to work, so no need to move back and forth as frantic with manual toothbrush. This is unnecessary movement which rapidly destroys the hair.
Negatives 1/2: The internal spring system is fragile in comparison to the original Oral B. When you look at the gap below the tuft of hair you see that there is a small spring that allows the rotating brush to regain its position as the generic spring is feeble or almost inoperative.
2/2: After a month in the first I used the spring has dropped, and while the tuft of hairs remains in good condition, which is already a very good thing, it does put more rotation with reciprocation while the other family members who use the original have no problems.
In conclusion, with this kind of brush is generic lottery including in the package you receive. I will say more in a few months to see if it is confirmed. Advantage, when you changed no big regrets. I put four stars to the first notice and now only three but still fall slightly if other brushes average quickly let go.