[header] How to stop teeth grinding in cats [title] Take your cat in for a veterinary dental exam. [step] If your cat is grinding its teeth, it most likely means that it is having some dental problems. This could be a loose or broken tooth, gum pain, ulcers, gingivitis, or a problem with its jaw. 
In response to the pain caused by these issues, a cat will often times grind its teeth. [substeps] Your veterinarian will ask you about your cat's symptoms and then give the cat an exam.