The human face has three to one thirds in a normal state. According to the best orthodontist in Mashhad, these thirds should be equal. In fact, the equality of these thirds is one of the criteria of facial beauty. The first third of the distance from the place of hair growth to the bridge of the nose, the second third from the bridge of the nose to the area under the nose, and the last third of the distance from under the nose to under the chin. But in some people, the ratio of these thirds is mixed. In long face and short face malformations, the lower third of the face occupies more height, that is, people and clients refer to specialized orthodontic offices whose height of the lower third of their face is higher or shorter, and they are called patients with long face height or short face height. For this reason, people look for face height reduction surgeries. In this article, we intend to comprehensively provide you with everything you need to know about face height reduction. Stay with us until the end. The relationship between facial height reduction and dental abnormalities From the point of view of Dr. Najmeh Tadredar Nejad, **the best orthodontic doctor in Mashhad**, a number of dental or skeletal abnormalities can be seen in patients with high facial height, including overgrowth of the front teeth of the upper jaw, increased vertical growth of the upper jaw, excessive visibility of the gums while smiling or a gummy smile, downward and backward rotation of the lower jaw and receding chin, oval and long face. Anterior dental and skeletal open bite, open jaw angle with retraction of the lower jaw, receding chin and class two division one dental occlusion are visible. In patients with short facial height, the picture of all these cases can be seen: That is, dental and skeletal anterior deep bite, quadrangular face presentation, closed jaw angle, low visibility of teeth and gums when smiling and having class two division two dental malocclusion. At the age of growth, it is possible to treat the skeletal deformity of a long face or a short face with the help of using orthopedic and orthodontic devices. Due to the existence of growth potentials, the remaining growth can be used to correct the dental malformation in the desired jaw. Treatment methods for long face height abnormalities The abnormality of the height of the long face can be treated with the help of the following devices: **1. Highpull headgear or occipital headgear ** Due to the short bow of the headgear, the excessive growth of the upper jaw is restrained in the forward and downward direction with the help of the support force of the head, or it restrains the excessive vertical growth of the upper jaw. The inner arch of the headgear is attached to the tube of the first molars or to an intraoral plate and inhibits the forward and downward growth of the maxilla. **Read more" Is orthodontics possible at the same time as nose surgery?** **2. Using a simple normal plate with thick byte blocks more than 6 to 7 mm larger than the byte** The posterior bite block causes a depressive force due to the tension it creates in the facial muscles, and this intrusive force on the posterior teeth of the upper jaw causes them to intrude and at the same time causes the lower jaw to rotate forward and upward, and can exert an inhibitory effect on the downward growth of the upper jaw due to muscle tension and control the problem of high face height. **3. A functional plate or an activator plate or monobloc with bite blocks thicker than usual, i.e. with a thickness greater than 6 to 7 mm** It corrects the vertical growth control of the maxilla and the stimulation and forward rotation of the mandible, and it is mostly used in patients who, in addition to the problem of tall face height, their mandible growth is less developed, and they have a receding lower jaw and a small and receding chin. Treatment methods for short face height abnormalities In patients with short facial height, the following devices can be used: 1\. At the age of growth, with the help of a functional activator plate or monobloc, which simultaneously corrects both the height of the face and the smallness of the mandible, because in a patient with short face height, after correcting the problem of short face height abnormality due to the rotation of the mandible to the back, he shows the smallness and retraction of his mandible. In this case, the forward growth of the lower jaw should be stimulated at the same time as correcting the facial problem in the vertical dimension, i.e. increasing the height of the face, which is done with the help of a functional device. In the functional activator device, the height of the face gradually increases with the growth of the posterior teeth with the differential trimming of the acrylic covering the posterior teeth. 2\. Cervical headgear, which increases the height of the face due to the direction of the external bow and due to the long length of the external bow that is connected to the neck strap or tape, and is mostly used in patients who only suffer from a decrease in facial height and their lower jaw is not a problem. 3\. Anterior Bite Plan: Anterior Bite Plan, which is embedded in a movable plate inside the mouth and due to creating a distance between the anterior teeth, accelerates the growth of the posterior teeth, the height of the face gradually increases, and it is mostly used in mild cases of short facial height and dental deep bite. High facial height and mouth breathing problems In some patients with high facial height, there may also be problems with oral breathing. Regarding the problem of high face height and its relationship with oral breathing, contradictory opinions have been presented in different sources, such that oral breathing can cause the abnormality of high face height, and in some references, it has been mentioned that the problem of mouth breathing arises due to high face height. In this regard, it can be said that the problem of oral breathing is more of a habit and adaptive situation and is due to the posture or the position of the head and neck relative to each other, and under the treatment of increasing the height of the face, oral breathing may be completely corrected or not. In other words, there is no guarantee about the complete solution of this problem following dental orthodontics or jaw surgery, but in most cases, significant improvement is observed. **The effect of the golden ratio of the face on correcting height and length** One of the important factors in the beauty and fit of the face is the relationship between the components of the face based on the golden ratio number (≈1.618). This ancient ratio is used to measure the length of the forehead, length of the nose and chin. ### 1. Measurement of facial features By dividing the face into three vertical parts (forehead to eyebrow, eyebrow to tip of nose, tip of nose to chin), it is possible to check whether this ratio is according to the golden standard or needs correction. In cases where, for example, the chin is very low or the nose is short, this proportion is messed up. ### 2. Targeted therapy If incompatibility is detected: dermal filler or fat grafting is used to increase the length or height of the chin; If the forehead or nose is small, solutions such as Botox are used for heightening or special fillers; By combining several methods, the golden ratio can be restored. Restoring the golden ratio not only creates visual balance, but also gives a more natural and youthful appearance to the face. #### Conclusion In this article, we tried to comprehensively provide you with the important points that you need to know about the treatment of short and long face height. In the end, it should be mentioned that you can get a free consultation from Dr. Najmeh Tadredar Nejad, orthodontist and maxillofacial orthopedic specialist in Mashhad, for invisible orthodontic treatment (improper tooth wiring) and treatment of jaw problems.