Nghiên cứu thay đổi phần mềm khi di chuyển răng cửa ở bệnh nhân trưởng thành được điều trị chỉnh nha

If orthodontic treatment plan of the 20th century based on occlusion and maxillar relationship, the treatment plan of 21st century based on profile analysis, predicting profile changes have extremely important role in treatment planning for patients especially when valuate the and anatomical characteristics of race. Research on 49 adult patients shows the profile upper lip change depending on many factors and the authors can predict, while the lower lip position, the more difficult to calculate accurately.