Same case — what is the diagnosis of Tooth #2 (negative on endo ice, pain on percussion and palpation)?

Correct answer: A. Pulp necrosis with symptomatic apical periodontitis

• A. Correct. A negative response to cold testing indicates pulp necrosis (non-vital pulp), and pain on percussion/palpation indicates inflammation has spread to the periapical tissues, consistent with symptomatic apical periodontitis.
• B. Reversible pulpitis would show a positive (not negative) response to cold testing.
• C. A normal pulp would respond positively (not negatively) to cold and would not be tender to percussion/palpation.
• D. Irreversible pulpitis (pulp still vital) would still respond — usually with lingering pain — to cold, not a negative result.