How many of you still buying the cheap tooth brush ? They cause damage to the dental layer. Its true you might have seen in some ORAL-B advertisements. Bad and cheap tooth brush are bad for your teeths. So better buy a good one.
Remember to change your tooth brush once in every 3 months or even sooner if possible.
If you are using Electronic Brushes with rotating heads then that's the best you could do for your teeth. All these just because your teeths are precious. Just imagine yourself without those teeths :) Then realise their value.