A vitalometer reading of 7-9 usually indicates which pulp condition?

• A. Healthy
• B. Degenerative
• C. Acute pulpitis
• D. Necrosis

Answer: (B)

Interpreting vitality tests hinges on how the pulp’s blood flow and nerve responsiveness change with health status. A reading in the upper mid-range, such as 7–9 on a vitalometer, signals that the pulp is still alive but not fully healthy. This pattern fits degenerative changes: the pulp remains vital yet shows reduced cellular activity and perfusion consistent with aging or chronic irritation. It isn’t dead, so you don’t see a zero reading, and it isn’t in an acute inflammatory overflow state that would push responses unpredictably high. In contrast, a truly healthy pulp would typically produce a stronger, unambiguous vitality signal; an acute pulpitis response is often more variable or exaggerated due to inflammation; necrosis would yield little or no response.