What is a potential consequence of leaving retained subgingival plaque untreated?

Leaving retained subgingival plaque untreated can lead to persistent bleeding on probing. This occurs because the bacteria present in the plaque can irritate the gum tissue, causing inflammation in the periodontium, which is the supportive structure around the teeth. As inflammation persists, the gums become more sensitive and vulnerable, leading to bleeding when they are probed during an examination.

Persistent bleeding is indicative of periodontal disease progression; untreated plaque can result in gingivitis that may advance to more severe forms of periodontitis if not addressed. In periodontal disease, the integrity of the gum tissue is compromised, and bleeding would be a common symptom. Thus, detecting persistent bleeding on probing is a crucial factor in assessing gum health and determining the necessary treatment to manage the condition effectively.