What Causes Plaque and Why Is It Harmful?
Plaque develops when foods containing carbohydrates (sugars and starches), such as milk, soft drinks, raisins, cakes, or candy are frequently left on the teeth. Bacteria that live in the mouth thrive on these foods, producing acids as a result. Over a period of time, these acids destroy tooth enamel, resulting in tooth decay. Plaque can also develop on the tooth roots under the gum and cause breakdown of the bone supporting the tooth.
Plaque buildup can also lead to gum disease: first gingivitis, the tender and swollen gums that sometimes bleed. Over time, severe periodontal (gum) disease can develop. Gum tissue pulls away from the teeth, allowing the bacteria to destroy the underlying bone supporting the teeth.