Table 1 Pain thresholds of operated jaw in rats

Group C (n = 9)

12.0 ± 2.4

11.6 ± 2.8

12.2 ± 2.6

12.4 ± 2.2

12.0 ± 2.1

11.8 ± 2.1

Group P (n = 8)

12.2 ± 2.1

10.5 ± 2.2

10.2 ± 2.6

7.3 ± 2.1^ab

5.8 ± 1.8^ab

5.2 ± 1.4^ab

Group Ifen (n = 9)

11.9 ± 1.8

11.2 ± 2.2

10.8 ± 2.4

7.8 ± 2.3^ab

5.4 ± 1.2^ab

5.0 ± 1.8^ab