Cheers for the replies guys
I try to brush Sahas teeth about twice a month, she actually quite likes it

but I do give her a wee denta stick every day, not sure if they work either! But it's worth a shot
From the day we got her a neighbour said to me that I should always take care of her teeth, she didn't with her dog and his teeth are terrible and she said thats the one thing she regrets....not brushing his teeth!
Julie x