What does incorrect placement of a perio probe at the facial surface of a maxillary anterior tooth indicate?

• A. Correct angulation for measuring height of contour
• B. Measurement of pocket depth is accurate
• C. Improper angulation
• D. Measurement requires further adjustment

Answer: (C)

The statement about incorrect placement of a perio probe at the facial surface of a maxillary anterior tooth typically indicates improper angulation. This is crucial because periodontal probing requires the probe to be positioned correctly to accurately assess the health of the periodontal tissues.

When probing, the angle at which the probe is introduced can greatly affect the measurement obtained. If the probe is not angled properly, it can lead to underestimating or overestimating pocket depths and, therefore, the assessment of periodontal disease severity. Proper angulation ensures that the probe can navigate the contours of the tooth and the associated gum tissue accurately, allowing for correct measurement of attachment levels and pocket depths.

Thus, recognizing the importance of the angulation of the probe is vital for ensuring that the measurements taken reflect the true state of the periodontal health of the patient.