Plaque and tartar are extremely common in adult cats, and chronic gingivitis and periodontal disease harm more than the mouth, adding systemic inflammatory load.
Early signals include strong breath odor, a red gum line, drooling, slower kibble eating or favoring one side, and reduced grooming; tooth loss and refusal come late.
Home care centers on gradual tooth-brushing training plus vet-approved dental products, but established tartar needs professional cleaning that brushing cannot remove.
Include an oral exam in annual checkups and let the vet judge anesthesia cleanings; mouth bleeding, facial swelling, or persistent food refusal need prompt visits.