An overview of surgery-first orthognathic approach

Abstract

The most common orthognathic surgery approach consists of three steps: presurgical orthodontic treatment, surgery, and postsurgical orthodontic treatment. Despite its advantages, this technique has some disadvantages, too, including a long treatment period, problems in mastication and articulation, temporary worsening of the patient's appearance, and psychological problems for the patient. The introduction of the surgery-first orthognathic approach has been an attempt to overcome these problems. In this article, we wish to provide a comprehensive overview on this approach. In this approach, which consists of surgery without orthodontic preparation and a short period of orthodontic treatment after it, the overall duration of treatment decreases and the patient's appearance improves. The skeletal anchorage, placed at the time of surgery, can be used to facilitate tooth movements after surgery. Despite the advantages of this technique, it is associated with some limitations; in particular, occlusion cannot have a guiding role during surgery. Therefore, correct diagnosis, prediction of the outcomes, and simulating correction with the model setup are of crucial importance. The surgeon's knowledge and expertise have a significant role in this respect.

Advent of artificial intelligence in orthognathic surgery: Advancements and challenges

“…The modified-surgery technique is used when preoperative orthodontic therapy lasts for less than six months. 13,16 The reduced treatment duration has been a key factor in the prevalence of surgery-first orthognathic, 17 another advantage is the improvement in facial profile right away from starting of the treatment, high levels of patient and orthodontist satisfaction are related to better cooperation during postoperative orthodontics and quick patient recovery. 18 While the orthodontics-first approach suggests that orthodontic therapy begins first, followed by orthognathic surgery, the surgery-first strategy states that orthognathic surgery begins first.…”

Potential of Avocado Seed Extract (Pasea Americana) As A Corrosion Inhibitor Against Surface Roughness OF CUNITI Orthodontic WIRE

“…Lama perendaman mengacu pada rata-rata waktu berkumur dengan obat kumur adalah 1 menit dan rata-rata frekuensinya adalah 2 kali sehari yaitu pagi dan sore hari [18]. Puncak korosi yang terjadi pada kawat ortodonti dalam rongga mulut yaitu selama 7 hari pertama [19]. Setiap hari kawat direndam selama 1 menit dalam ekstrak biji buah alpukat yang dilarutkan dalam saliva buatan dengan frekuensi 2 kali dalam sehari sehingga total waktu perendaman sampel pada ekstrak biji buah alpukat yang dilarutkan dalam saliva buatan selama 7 hari dimulai dari hari pertama.…”

“…Beberapa penelitian menyebutkan, kawat ortodonti yang direndam dalam saliva buatan akan korosi serta tingkat pelepasan ion logam mencapai puncak pada hari ke-7 dan pelepasan akan berhenti dalam 4 minggu [19] [30]. Korosi dapat menyebabkan penurunan sifat mekanik kawat CuNiTi, yaitu modulus elastisitas dan yield strength selama fase unloading atau deaktivasi yang akan mempengaruhi efektivitas pergerakan gigi.…”

Bilateral Sagittal Split Osteotomy with Mandibular Setback - A Case Report

“…Occlusion cannot serve as a guide during the surgical phase of SFOA and thus makes patient selection, treatment planning with simulation, accurate prediction of post-operative outcomes and expertise of surgeon/ orthodontist very crucial. 2 Although the aesthetics of the patient is achieved rapidly, the long-term stability of the results depends on the already mentioned factors. Thus, despite the prolonged treatment duration, conventional orthognathic surgery is preferred over SFOA in certain cases.…”