Single-blind clinical trial comparing use of fentiazac and paracetamol in postendodontic periodontitis.

The efficacy of oral fentiazac (100 mg QID) was compared with that of paracetamol (500 mg QID) in a single-blind trial in 30 patients suffering from post-endodontic periodontitis secondary to infiltrative or abscessed pulpitis. Patients were allocated at random to two treatment groups and treated for four days. Over each of the four days, patients scored the severity of spontaneous pain and induced pain. The same symptoms were assessed by the investigator at 0, 48, and 96 hours. Special attention was paid to the occurrence of adverse reactions. A statistically significant difference favoring fentiazac was seen in the patients' assessments of induced pain (while eating) but not in the investigator's assessment of induced pain (percussion). There was no significant difference in the analgesic effects of fentiazac and paracetamol with respect to spontaneous pain scored by patients or the investigator. No side effects were seen. Fentiazac was shown to be an effective analgesic for use in this painful inflammatory condition.