There is no definite rule to change or arrange anterior guidance for oral rehabilitation. Therefore, the anterior guidance must be fixed in order to adapt the neuromuscular system, through trial and error. Naturally, the matters of phonetics and esthetics are just as important as this.
In the case, when oral rehabilitation is treated according to the results of the examination, of the occlusal diagnosis and of the wax-up for the diagnosis, then, it is necessary to arrange the anterior guidance, so it can be settled by trial and error. In addition, as several pantograph survies are made, then the effect can be confirmed. Thus a comfortable restoration can be set.
