Which radiographic finding may indicate occlusal trauma?

• A. Pulpitis
• B. Widened PDL on radiographs
• C. Gingival inflammation
• D. Increased bone density

Answer: (B)

Occlusal trauma places abnormal stress on the tooth-supporting structures, and the PDL responds to that stress in a way you can see on radiographs. The key sign is widening of the periodontal ligament space around the tooth, reflecting edema and disruption of the PDL fibers from excessive occlusal forces. This radiolucent widening is the most reliable indicator of occlusal trauma among the options.

Pulpitis is inflammation of the dental pulp and isn’t identified by changes in the PDL space. Gingival inflammation involves soft tissue around the tooth and isn’t a radiographic finding. Increased bone density can occur for other reasons and isn’t a consistent sign of occlusal trauma.