What grooming task helps prevent dental disease?

The story behind the answer

Brushing the dog’s teeth is best because it mechanically removes plaque—the sticky biofilm of bacteria—before it hardens into tartar and causes gingivitis and periodontal disease. Water rinses don’t disrupt plaque, and while dental chews and chew toys can help, they don’t reliably reach the gumline or all tooth surfaces. Daily (or at least several times a week) brushing with dog-safe toothpaste is the gold standard for preventing dental disease.

Context tip: By age 3, most dogs show signs of periodontal disease, which can lead to pain, tooth loss, and even heart and kidney issues as bacteria enter the bloodstream. Memory hook: “Brush the biofilm before it becomes stone.” Never use human toothpaste—use a pet-formulated paste that’s safe to swallow.