Best Toothbrush for rough brusher?

Question

My girlfriend brushes her teeth so hard that the bristles flatten. No matter how many times I try to show her the correct way she doesn’t listen and her toothbrush is always ruined within a week or two. Does anyone know a toothbrush for people like this cuz I have seen a couple other people who do this too. I’d love to get her a toothbrush where the bristles don’t hurt her gums, because she likes soft bristles, but also ones she isn’t going to destroy because she feels like need the brush her teeth as though she’s the Tasmanian devil. 

Answer 1

Tell her from me that she is weakening her teeth enamel. In a matter of time her enamel will thin and show the yellow dentine beneath. She will also cause cavities where it wears away.

Silly girl. Dentures by age 30.

Source(s): I worked for a U.K. Dentist.

Answer 2

Oral=B, electric with changeable heads.