Routine oral hygiene is the core way to improve bad breath in cats. Choose cat-specific toothpaste and toothbrushes; the toothpaste flavors are often chicken, fish, or other flavors that pets enjoy and won't reject. When cleaning, keep your cat relaxed, gently lift the corners of their mouth, and use the toothbrush to gently brush the tooth surface and gum line in circular motions. Each cleaning session should last 1-2 minutes, 2-3 times a week, to effectively reduce plaque and tartar buildup.
Dietary supplements can further maintain oral health. You can feed your cat special dental chews or dental sticks, which help remove food residue by chewing and rubbing the tooth surface. Alternatively, you can choose prescription food with dental cleaning function, whose kibble shape is specially designed to clean teeth during chewing, while supplementing the nutrients needed for oral health and improving the oral environment from the inside.

Regular professional checkups and cleanings are essential. It's recommended to take your cat for an oral examination annually. If severe tartar buildup or oral inflammation is found, professional teeth cleaning under a veterinarian's guidance is necessary. Regularly observe your cat's oral health; if you notice red, swollen gums, drooling, or other issues, intervene promptly with proper oral care to maintain fresh breath and a healthy mouth.