What is a common sign of periodontal disease?

Bleeding gums during brushing is a common sign of periodontal disease, as it indicates inflammation and irritation of the gum tissue. This condition arises when plaque and tartar build-up irritate the gums, leading to gingivitis, which can progress to more severe forms of periodontal disease if left untreated. When the gums are inflamed, even gentle brushing can cause bleeding, a clear indicator that the tissues are compromised and in need of attention.

Increased tooth sensitivity may occur due to various factors, such as enamel erosion, but it is not specifically a sign of periodontal disease. It reflects a different dental issue that may or may not be related to gum health.

Persistent bad breath, or halitosis, can be associated with periodontal disease; however, it is not exclusive to this condition and can occur for a range of reasons, including dry mouth or other dental issues.

Deep discoloration of teeth might indicate decay or staining but does not directly relate to the presence or severity of periodontal disease. While dental health can be interlinked, discoloration itself is not a definitive sign of periodontal health.