Discomfort resulting from acute irreversible pulpitis is described as:____________?
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Answer: A. Spontaneous
Explanation
Acute irreversible pulpitis typically causes spontaneous, severe pain that occurs without an external stimulus. Inflammation of the pulpal tissue increases tissue pressure within the rigid confines of the dentin chamber. Nerve fibers within the inflamed pulp fire continuously, resulting in lingering spontaneous discomfort for the patient. Irreversible pulpitis indicates that the dental pulp is incapable of healing and requires root canal therapy. Thermal stimuli, especially cold liquids, provoke prolonged pain that persists long after the stimulus is removed. Histologically, the pulp demonstrates intense vasodilation, edema, and dense infiltration by inflammatory cells.
Sharp shock-like pain can sometimes occur, but spontaneous continuous aching is the hallmark of advanced inflammation. Pain lasting for a short time is characteristic of reversible pulpitis rather than irreversible pulpal necrosis. Continuous is correct as part of the pain description, but spontaneous onset specifically defines irreversible pulpitis.
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