Introduction: Accurate diagnosis is one of the most important steps before endodontic treatment. The aim of this study was to assess the effect of 2 commonly used analgesics namely ibuprofen and acetaminophen on the cold and electric pulp test (EPT) results in participants with symptomatic irreversible pulpitis (SIP).
Methods: This clinical trial evaluated 41 participants with pain due to SIP. The cold test and EPT were performed for teeth with SIP, and also for the corresponding tooth with healthy pulp in the contralateral quadrant. The participants then received 500 mg acetaminophen, 400 mg ibuprofen, or the placebo in the 3 groups. The cold test and EPT were repeated at 20, 40, and 60 minutes after medication intake, and the results were compared with the pretreatment values.
Results: In the acetaminophen group, the results of cold test significantly decreased 40 (P < .05), and 60 (P < .05) minutes after analgesic intake in teeth with SIP and after 40 minutes (P < .05) in the corresponding contralateral teeth with healthy pulp. In the ibuprofen group, the cold test results significantly decreased at 20 (P < .05), 40 (P < .05), and 60 (P < .05) minutes after analgesic intake in teeth with SIP and after 40 minutes (P < .05) in the corresponding contralateral teeth with healthy pulp. The EPT results were not significantly affected by the studied analgesics at any time point (P > .05). There was no significant difference among the study groups regarding sex (P > .05).
Conclusion: It appears that both acetaminophen and ibuprofen can affect the pulpal response to the cold sensibility test. However, the studied medications had no significant effect on the EPT results. Therefore, dental clinicians should be aware of the possible effects of such medications on the cold test response.
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