Which diagnostic finding would NOT suggest a periodontal abscess?

Sensitivity to percussion is typically a diagnostic finding that may suggest various dental issues, including pulpitis or other periapical conditions, rather than a periodontal abscess. A periodontal abscess primarily presents with pain that is often described as dull and localized, leading to discomfort around the affected area. Additionally, swelling of the gingival tissue is commonly observed due to the accumulation of pus and inflammation.

Radiographic findings associated with a periodontal abscess may involve localized bone loss, particularly when there is periodontal disease present, but angular bone loss specifically might not always pertain directly to a periodontal abscess. Thus, the sensitivity to percussion stands out because it indicates possible involvement of the root or pulp rather than the periodontal tissue itself, making it less consistent with the characteristics of a periodontal abscess.