Dudley's Dental Dilemma

Little Dudley is an adorable 16 year old dog, part Maltese Terrier and part West Highland Terrier (we think!). We inherited him after his original elderly lady owner died of cancer and she had no one to leave him with. He went to a foster home where he got bitten by a much larger dog - a pitbull apparently - and needed to be taken to safety. So we said we would foster him instead but ended up keeping him, partly because he is too old to readily find a new home, partly because we love him to bits. Unfortunately his care has been neglected for some years and his teeth have got into a deplorable state, with two broken ones and a bad case of gum disease as well. Due to my own circumstances having dropped lately I am unable to afford the care he needs so I am appealing to the public for help.