Dental disease in dogs and cats is very common, especially in older ones. It is recommended to do dental cleanings annually. If that seems often, remember that we have *our* teeth cleaned every 6 months!
Unfortunately, It's not unusual for us here at A2AH to encounter some really extreme cases of pet dental neglect. We see it all too often and the reasons for it vary. Many pet owners simply don't realize that a pet with poor dental hygiene will end up costing them a lot more money, especially if extractions are required, than regular dental cleanings.