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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
It is known that some local anesthetics may cause pain when the initial local anesthetic effect disappears. The aim of this trial was to compare the postoperative pain intensities after infiltration of plain lidocaine 1% and 2% used in gingivectomies. The trial was done as a controlled, randomized, double-blind, parallel group study involving 117 patients with mean age 48 years (range 29-71 years) allocated to two treatment groups. There was no statistically significant difference between the mean postoperative pain courses of lidocaine 1% and 2% after gingivectomies during an 11-h observation period. A numerical difference was seen from 7 to 11 h in favor of lidocaine 1%. There were more patients experiencing no pain, but more patients reporting higher pain scores in the lidocaine 2% group than in the lidocaine 1% group. These differences were not statistically significant. It can be concluded that there is apparently no difference between lidocaine 1% and 2% with respect to postoperative pain experience when using gingivectomy as a pain model.[1]
