In dental procedures, what instrument is typically used for measuring pocket depths of periodontal tissues?

The periodontal probe is the instrument specifically designed for measuring pocket depths in periodontal tissues. During a dental examination, this instrument is utilized to assess the health of the gums and the surrounding areas of the teeth. It features a calibrated, slender, and blunt-ended design with markings along its length, allowing the clinician to accurately determine the depth of the gum pockets. This measurement is crucial for diagnosing conditions such as gingivitis or periodontitis, as it helps assess the severity of periodontal disease and guide treatment decisions.

Other instruments such as cotton pliers are primarily used for handling materials, like placing cotton pellets or gauze in the mouth, rather than measuring. The scaler is focused on removing tartar and plaque from tooth surfaces but not for measuring depths. The exploratory probe may be used for detecting caries or examining surfaces but is not meant for gauging pocket depths. Thus, the periodontal probe is essential in the dental practice for its specific role in periodontal assessment.