My thanks to everybody who pitched in with advice.

Cat's had her visit to the vet. Her teeth are worse now -- surprise, surprise -- but vet was more concerned about the potential state of her kidneys. Recommended putting pws on a prescription renal diet, which I am sure she will love. If her urea levels come down, then maybe a clean up is on the cards for her.

Meanwhile, she's not speaking to me. I don't think she's a fan of her new shave.