The effect of PD98059 on the d-EMG activities after tooth pulp or periapical inflammation.

<p>The capsaicin was applied into the Mass after pretreatment of PD98059 in the rats with M1 CFA application on day 3 and week 6. A: The d-EMG activity following capsaicin application into the Mass after pretreatment of PD98059 or saline in the rats with M1 CFA application on day 3. B: Relative d-EMG activity following capsaicin application into the Mass after pretreatment with PD98059 or saline in the rats with M1 CFA application. C: Mean duration of d-EMG activity following capsaicin application into the Mass after pretreatment with PD98059 or saline in the rats with M1 CFA application. D: The d-EMG activity following capsaicin application into the Mass after pretreatment of PD98059 or saline in the rats with M1 CFA application on week 6. E: Relative d-EMG activity following capsaicin application into the Mass after pretreatment with PD98059 or saline in the rats with M1 CFA application. C: Mean duration of d-EMG activity following capsaicin application into the Mass after pretreatment of PD98059 or saline in the rats with M1 CFA application. +: vs. −1 min, *: saline i.t. vs. PD98059 i.t., +,*: p<0.05., ++, **: p<0.01.