Which radiographic finding most commonly indicates chronic periodontitis?

Which radiographic finding most commonly indicates chronic periodontitis?

• A. Alveolar bone loss with periodontal ligament broadening and horizontal or vertical bone destruction
• B. Increased bone density with thick lamina dura
• C. Widened nasal floor with tooth displacement
• D. Calcified lesions within the root canal

Answer: (A)

Chronic periodontitis shows up on radiographs mainly as loss of the tooth-supporting bone around the teeth. This means the crestal bone height declines and the surrounding bone shows patterns of destruction that can be horizontal across several teeth or vertical (intrabony) defects in localized areas. The periodontal ligament space may appear broadened in areas affected by the inflammatory process, reflecting changes in the attachment apparatus. This combination of alveolar bone loss with possible PDL space changes best matches chronic periodontitis, rather than findings that suggest sclerosis or other pathologies (such as calcifications in the root canal or nasal/sinus-related changes) that aren’t characteristic of periodontal disease.

Chronic periodontitis shows up on radiographs mainly as loss of the tooth-supporting bone around the teeth. This means the crestal bone height declines and the surrounding bone shows patterns of destruction that can be horizontal across several teeth or vertical (intrabony) defects in localized areas. The periodontal ligament space may appear broadened in areas affected by the inflammatory process, reflecting changes in the attachment apparatus. This combination of alveolar bone loss with possible PDL space changes best matches chronic periodontitis, rather than findings that suggest sclerosis or other pathologies (such as calcifications in the root canal or nasal/sinus-related changes) that aren’t characteristic of periodontal disease.