I read 2-3 times a week somewhere...but God bless the people who can manage that. I am shooting for once a week with my two. It's tough!!

 

Everyday . It's only 20 secs per cat = 1 minute per day (For me anyway). Of course, I admit if I'm really tired I will let it slide every once in a while.

 

I've spoken about this with a veterinarian assistant and she says that once every second week if the cats teeth are OK is enough. Once a week is better of course but once ever second week would do.

 

I try to brush their teeth every second day. I think in the end it's like once a week because I don't spend too many seconds or minute per session. They can't stay still for a long time.