What do you do if a man knocks out four of your front teeth and the man leaves the country before the court case is onwho pays for your teeth?

You must still go to court and get the judgment issued against the defendent in their absence. The court will continue the attempt to contact the defendant. If that fails then the defendent will be in contempt of court and a warrant for arrest will be issued. The statue of limitations will be thrown out until that person returns to the state. The debt will referred to a credit agency and they will track that person. If the person enters the country again they may be arrested due to outstanding warrant. If you do not go to court, your case may be dismissed with prejudice ie. you can't come back and try again on this matter. This would leave your assailant free to return-which I suspect is what they are hoping happens.