What is a common sign of periodontal disease?

Bleeding gums during brushing is a hallmark sign of periodontal disease, which indicates inflammation and infection of the gum tissues. When periodontal disease is present, the gums can become swollen and irritated, making them prone to bleeding when external pressure is applied, such as during brushing. This symptom is often accompanied by other signs like redness or tenderness in the gums, and it signifies that the tissues are not healthy. Periodontal disease, if left untreated, can lead to further complications, including more severe gum disease and possible tooth loss.

Tooth sensitivity to hot and cold is primarily associated with other dental issues, such as cavities or enamel wear, and not exclusively a sign of periodontal disease. Persistent bad breath can occur with periodontal disease, but it is a more general symptom and could arise from other oral health issues, such as gum infections or poor oral hygiene. Loss of appetite is not a direct indicator of periodontal disease and is typically linked to other health conditions or systemic issues rather than oral health specifically.