About the nailing, it sounds like it is quite scary, and many patients feel intimidated when they are seen and told that they may have to have a bone nail when they are given a treatment plan. The bone nail is in the process of tooth movement, need additional assistance, such as teeth protrusion, that is, buck teeth, after the extraction, want more incisors can go in, but do not want the back teeth to move forward, occupying this part of the position, and affect the effect of orthodontics, through the back teeth pull the front teeth, the back teeth may also produce movement, then through additional measures to achieve more incisors The purpose of getting more incisors in is to use bones. In the old days, the skeleton was worn on the outside of the skull, but the patient’s cooperation was required. Later on, orthodontic bone pins were invented, called implant pins, or bone pins, which are driven through the gums and into the bone, and the pins are used to pull the teeth in with good retention to achieve more teeth inward. The process of implantation is a very small surgery, a little anesthetic can be, do not have to worry about playing bone nail very painful, or have adverse effects, bone nail can be removed after use, the process of removal is very simple, do not need any anesthetic, etc., so do not worry about orthodontic over in the case of playing bone nail.