What measurement is used to quantify periodontal bone loss on a radiograph?

What measurement is used to quantify periodontal bone loss on a radiograph?

• A. Distance from the CEJ to the alveolar bone crest
• B. Distance from the CEJ to the root apex
• C. Distance from the CEJ to the pulp chamber
• D. Distance from the enamel surface to the alveolar crest

Answer: (A)

The measurement used to quantify periodontal bone loss on a radiograph is the distance from the cementoenamel junction to the alveolar bone crest. This fixed tooth landmark (the CEJ) serves as a stable reference, while the alveolar crest reflects the level of supporting bone. The difference between these two points, measured in millimeters, indicates how much bone has been lost. The other proposed measurements don’t assess bone support: CEJ to the root apex measures tooth length, CEJ to the pulp chamber is not related to bone height, and enamel surface to the alveolar crest is not a reliable indicator of bone loss.

The measurement used to quantify periodontal bone loss on a radiograph is the distance from the cementoenamel junction to the alveolar bone crest. This fixed tooth landmark (the CEJ) serves as a stable reference, while the alveolar crest reflects the level of supporting bone. The difference between these two points, measured in millimeters, indicates how much bone has been lost. The other proposed measurements don’t assess bone support: CEJ to the root apex measures tooth length, CEJ to the pulp chamber is not related to bone height, and enamel surface to the alveolar crest is not a reliable indicator of bone loss.