The determination of the distance from the cementoenamel junction (CEJ) to the base of the periodontal pocket, coupled with the measurement of gingival recession (if present), provides a crucial metric in periodontal diagnostics. This procedure involves precisely measuring the space between a fixed reference point on the tooth (the CEJ) and the point where the periodontal probe reaches resistance within the sulcus or pocket. For example, if recession measures 2mm and the probing depth is 3mm, the resulting value is 5mm.
This process is fundamental for evaluating the extent of periodontal destruction, staging the severity of the disease, and monitoring its progression or response to treatment. Accurate assessment allows clinicians to establish a definitive diagnosis, develop an appropriate treatment plan, and track the long-term stability of periodontal tissues. Historically, advancements in periodontal probing techniques and radiographic analysis have refined the precision and reliability of this diagnostic parameter, contributing significantly to improved patient outcomes.