Dog Dental Care alternatives?

My 4 year old chihuahua terrier has really bad tartar buildup on his teeth which has caused discoloration and halitosis. I've called some local veterinary clinics and the average price to have the dogs teeth cleaned under anesthesia is $200.00 or more. Is there any alternative methods to removing tartar build up on my dogs teeth. I've tried brushing, busy bone dental, and smoked real bones to no avail. I don't want to spend that much money unless is absolutely necessary.
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It's necessary. Once the teeth get that bad, the animal can be in pain. Just like humans, dogs and cats can develop gingivitis and periodontitis. It is unpleasant for the owner and can be uncomfortable to painful for the animal. It can be pricey, but it is something that must be done on a periodic basis. Once the teeth are nice and clean, make sure your dog eats a high-quality dry kibble, and such treats like Greenies can help. If you brush your dog's teeth daily with a toothpaste formulated for dogs (never use a human toothpaste!) that will greatly reduce the rate of tartar buildup.
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