Gintoki’s mouth is swollen like crazy, forcing him to go to the dentist for treatment. Unable to cope with the stress and pressure of waiting, a crazed Gintoki screams for someone to just kill him and be done with it. After getting scolded by the staff, Gintoki waits for his turn when another man with a swollen mouth comes in, making things even more complicated!
I heard that they did it in one shot here.
Me habían dicho que aquí podría 
arreglarlo de una sola visita.
Eu achei que fizessem de uma vez aqui.