Final answer:
The necrosis of the tooth pulp often leads to chronic periradicular periodontitis, an inflammatory condition around the tooth root, potentially caused by untreated dental caries that reach the pulp.
Step-by-step explanation:
Which of the following results from a necrotic pulp? The correct answer is C. Chronic periradicular periodontitis. When the innermost pulp, which is rich in blood vessels and nerves, becomes infected and necrotic, a root canal may be necessary to remove the affected tissues. If left untreated, this can lead to chronic periradicular periodontitis, a condition where the infection leads to inflammation and damage to the periodontal tissues surrounding the apex of the tooth's root.
Dental caries can progress through the enamel and dentin layers, eventually reaching the pulp and causing infection, potentially resulting in an abscess. Good oral hygiene is essential for preventing the progression of such infections, which can lead to severe periodontal diseases.