Endodontics · patient case question

What is the pulpal diagnosis?

Patient case: Pregnant patient with lingering pain

Patient: Female, 29 years old

Chief Complaint: Severe pain in a lower molar, worse with hot, relieved briefly by cold.

Background: 24 weeks pregnant, uncomplicated pregnancy. No other medical history.

Current Findings: Deep caries in tooth #19. Pain lingers for several minutes after a cold stimulus is removed and wakes her at night. The tooth is tender to percussion. No swelling and no sinus tract.

  1. Chronic apical abscess
  2. Reversible pulpitis
  3. Symptomatic irreversible pulpitis
  4. Pulp necrosis
Show answer and explanation

Correct answer: C. Symptomatic irreversible pulpitis

  • A. A chronic apical abscess is characterised by a draining sinus tract and is typically asymptomatic or only mildly uncomfortable — the opposite of this presentation.
  • B. In reversible pulpitis the pain is sharp but resolves within seconds of removing the stimulus, and there is no spontaneous or nocturnal pain. Removing the irritant lets the pulp recover.
  • C. CORRECT. Pain that LINGERS after the stimulus is removed, is spontaneous, wakes the patient at night, and is relieved by cold in a hot-sensitive tooth is the classic picture of symptomatic irreversible pulpitis. The pulp cannot recover and must be removed.
  • D. A necrotic pulp does not respond to thermal testing at all. This pulp is responding vigorously.

Note: Full diagnosis for this tooth: symptomatic irreversible pulpitis WITH symptomatic apical periodontitis. INBDE expects both a pulpal and a periapical diagnosis for every endodontic case.

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