Orthodontic treatments are not just for sorting out cracked teeth. In orthodontic treatment, the relationship between the jaws and teeth also improves. Incorrect upper and lower jaw relationships will have a negative impact on eating, chewing, and speaking. Many people who have abnormalities of the jaw and teeth sometimes cannot pronounce the letters correctly, for example, it may be difficult to pronounce the letters s and s. Also, people’s faces and facial bones affected by jaw relationships, such as those whose lower jaw is ahead of the upper jaw, not only have problems such as chewing and talking, but also change the entire facial bones and this shows the person’s face in anger. Sometimes crowding of the teeth, especially in the front of the jaw, leaves food in the teeth which can lead to problems with tooth decay and gum disease. Orthodontic treatments greatly help to chew and speak properly.