The name of this condition is also known as “pockets of teeth”, which is the professional name for the protrusion of the jaw. In addition to affecting chewing and speaking and TMJ, more people feel that it affects their appearance and psychological inferiority or injury. Before the 1950s, it was generally considered a more troublesome and risky type of surgery. Professor Hugo Obwegeser (1920-), in 1955, first reported the correction of mandibular deformity by an oblique splitting osteotomy of the mandibular ascending branch through the intraoral approach. The main features are, firstly, the absence of skin scars and the complete completion of the surgery through the intraoral approach, and secondly, the ingenious bypassing of the inferior alveolar nerve vessels, which reduces the chance of intraoperative bleeding and nerve injury or even no nerve injury. It marks the maturity and modernization of mandibular orthodontic surgery and is recognized as a new milestone for human correction of mandibular deformity. This method was improved in 1959 by Dr. Dal Pont, an associate of Prof. Obwegser, who extended the osteotomy line anteriorly and inferiorly, and is now the most common and best surgical method used by plastic surgeons internationally to correct the deformity of the lower third of the face. In the 1980s, more than 90% of European surgeons commonly used the intraoral approach. In the 1980s, more than 90% of European surgeons commonly used the intraoral approach of the mandibular ascending oblique splitting osteotomy. In the United States, fewer surgeons used it. Some statistics say less than 10%. This is because most of them use a different method: vertical mandibular ascending osteotomy. By the 1990s, American surgeons were soon using more than 90% of the cases with an oblique mandibular ascending branch osteotomy with an intraoral approach. There are many advantages of this surgical approach, except for the absence of skin scarring, low intraoperative bleeding and minimal nerve damage, as mentioned earlier, the operation is also uncomplicated, relatively fixed and simple. Therefore, young people with geodesic troubles and their parents should feel at ease. Of course, there are risks involved in any surgical procedure, and when you decide on surgical treatment, be sure to seek out a surgeon with specialized training in formal craniomaxillofacial surgery or maxillofacial surgery.