According to an embodiment of the present invention, a method for realizing an occlusal relationship comprises the steps of: receiving a dental library of a patient, including a landmark; generating a to-be-worked dental model related to a prosthesis with reference to the dental library of the patient; dividing a screen to display a lateral cross section of a state that the to-be-worked dental model and an antagonist model are occlusal, a dental occlusal surface of the to-be-worked dental model and a dental occlusal surface of the antagonist model; displaying a landmark on the to-be-worked dental model included in the lateral cross section in accordance with a vertical position of the landmark included in the to-be-worked dental model, and displaying a landmark on the dental occlusal surface of the to-be-worked dental model in accordance with a horizontal position of the landmark included in the to-be-worked dental model; displaying a landmark on the antagonist model in the lateral cross section in accordance with a vertical position of the landmark included in the antagonist model, and displaying a landmark on the dental occlusal surface of the antagonist model in accordance with a horizontal position of the landmark included in the antagonist model; moving a position of the landmark corresponding to a movement command when the movement command selected by a user among the landmarks displayed on the side-directional cross section, the dental occlusal surface of the to-be-worked dental model, and the dental occlusal surface of the antagonist model, is input, and correcting the to-be-worked dental model in accordance with the position of the moved landmark; and correcting and displaying the lateral cross section, the dental occlusal surface of the to-be-worked dental model, and the dental occlusal surface of the antagonist model in accordance with the corrected to-be-worked dental model.본 발명의 일실시예에 따른 교합 관계 구현 방법은 랜드 마크가 포함된 환자의 치아 라이브러리를 입력받는 단계; 상기 환자의 치아 라이브러리를 참조