How often do your dogs have their teeth cleaned at the vets?

[WELOVESPUPPIES]

Duke will be 8 this August and he has never had his done. The vet told me for his age he has very good teeth and he did not see any need to do it, there was such a small amount of tartar he felt that for his age that he said he would probably never need it done. Duke loves to chew so it helps keep his teeth really clean. The vet said Champs look really good too. Well Chopper doesn't even have all his adult teeth in yet so I will have to keep an eye on his being a small breed and all but he loves to chew things too so hopefully that will help keep his clean.

[pitc9]

Both of my pups are 6 years old and have never had their teeth cleaned, but last Spring when we went in for shots the vet said they both need their teeth cleaned. It's going to be around $230 per dog!
So when I get tax money back they're both going in.