What methods are used to examine supragingival calculus?

The correct method for examining supragingival calculus involves using visual and tactile examination. Visual examination allows dental professionals to directly observe the presence of calculus on the tooth surfaces, particularly in areas that are most likely to accumulate plaque and tartar. Tactile examination is performed using dental instruments, such as probes or explorers, which help detect the hardness and texture of calculus, confirming its presence.

While other methods like using compressed air can aid in visibility and provide insight into the condition of the tooth surface by drying out saliva, the essential components of calculus detection remain visual and tactile examination. This dual approach provides the most reliable assessment since it allows the clinician to see and feel the calculus, which is critical for a comprehensive evaluation.

Other examination techniques like x-rays are more useful for evaluating subgingival calculus and periodontal disease rather than supragingival. Therefore, while visual and compressed air examination can be useful in conjunction, they do not fully encompass the primary techniques required for assessing supragingival calculus as effectively as visual and tactile examinations do.