08/08/2021
Another important reminder about cats' teeth and resorptive lesions.
Resorptive lesions are very, very common in cats' teeth - occurring in about 30-70% of cats. The lesions can be difficult to spot to the naked eye - sometimes the only evidence is a small area of inflamed gum. Once you probe the teeth under anaesthesic, however, you can feel the deficits, they bleed easily, and they are painful.
Where there is one lesion, there is often more. If you come across a cat that is missing teeth, your suspicions should be increased that the cat may have resorptive lesions. Teeth don't fall out without a reason.
Resorptive lesions are painful. A part of the tooth gets eaten away, exposing the sensitive centre of the tooth where the nerves are. The only treatment, where a deficit in the tooth sits at or above the gumline, is extraction.
The cat pictured was missing many of its small front teeth, it had lots of gum inflammation, and some of the back teeth had obvious deficits that could be seen with the naked eye. Under anaesthetic, dental xrays were taken of all the teeth. The xrays showed a resorptive lesion in EVERY single tooth except in the canine teeth. Many of these lesions weren't obvious looking at the teeth when the cat was awake. This cat required full mouth extractions. It is sad but those teeth would have been causing significant pain and the cat will be much happier without them.
You cannot judge a cat's mouth based on appearance alone. Feeling the teeth with a dental probe and doing full mouth xrays under general anaesthetic are required for proper assessment. Whenever a cat is missing teeth or if there is inflammation of the gums, anticipate that maybe you might encounter some surprises during any dental procedure on a cat.