Orthodontic bone nails can be removed in 1~2 years, the time of removal is mainly determined by the patient’s orthodontic condition, and need to follow the doctor’s instructions. Bone studs, also known as mini bone studs, micro bone studs, supportive studs, are temporary mini implants implanted into the alveolar bone, the scientific name is “temporary supportive device”, made of pure titanium, is an increasingly popular orthodontic treatment in recent years as an auxiliary tool. The function of the bone nail is to provide a fixed source of orthodontic force, especially the need for vertical movement of the teeth, it is necessary to implant the bone nail to help pull the teeth, in the correction of buck teeth, gums smile, deep overjaw and other cases have a very good efficacy, and can complete the traditional orthodontic difficult to do the effect. Bone spikes are usually worn for 1~2 years and can be removed after orthodontic treatment is completed, or when teeth are moved, but it still depends on the patient’s recovery. Of course, not all orthodontic patients need to have bone pins, it depends on the design of the orthodontist. In addition, do not eat irritating foods during the bone nail fixation period to avoid damage to the teeth.