What probing depths are indicative of moderate periodontitis?

Moderate periodontitis is characterized by probing depths that typically range from 4mm to 7mm. This indicates that there is a moderate level of tissue destruction around the teeth due to periodontitis. The correct answer, reflecting probing depths of 5-7mm, aligns with the clinical definitions used by dental professionals.

In this range, there may be bone loss that can be observed on radiographs, and there is usually some degree of clinical attachment loss (CAL). Probing depths greater than 4mm suggest deeper periodontal pockets, which indicate a more significant loss of periodontal support compared to healthy or mildly affected gums.

Probing depths below 4mm generally indicate health or mild gingivitis, and depths beyond 7mm are associated with severe periodontitis, where there may be extensive attachment loss and increased risk for tooth mobility. Therefore, identifying a probing depth of 5-7mm as indicative of moderate periodontitis is essential for assessing periodontal disease severity and determining appropriate treatment strategies.