Which tool is primarily used to measure periodontal pockets?

The periodontal probe is specifically designed for measuring the depth of periodontal pockets, which are spaces that can form between the teeth and gums due to periodontal disease. This tool features a graduated marking system allowing the clinician to assess pocket depth accurately. Typically, the probe is inserted gently into the sulcus or periodontal pocket, and the marked measurements indicate how deep the pocket extends. This information is critical for diagnosing the severity of periodontal disease and planning appropriate treatment.

In contrast, the explorer is primarily used for detecting caries and assessing the surface texture of teeth, not for measuring pocket depths. A scaler is meant for removing calculus and plaque from teeth rather than for depth measurement. Similarly, a curette is used to clean the root surfaces and remove subgingival deposits but does not have the specific marking features or structure required for accurate pocket measurements. Therefore, the use of a periodontal probe is essential in periodontal assessments.