Orthodontics (ordinary metal brackets)

Ordinary metal bracket: It is the most traditional and cheapest appliance. The traditional orthodontic fixed appliance adopts stainless steel brackets and is widely used. The so-called orthodontic bracket refers to a device made of a metal or ceramic material fixed to the surface of the tooth by a special adhesive in orthodontic treatment, for accommodating and fixing the orthodontic wire, and transmitting the corrective force to To achieve the purpose of correcting misaligned teeth. Choosing quality brackets can reduce the number of patient visits, shorten treatments, and deliver accurate, predictable treatments. At the same time, due to its aesthetics and comfort, performance and materials, there are advantages and disadvantages. Treating diseases: dentition sparse dentition crowded Indication 1. Patients with crowded teeth: manifested as teeth in and out, not beautiful, not easy to clean, prone to dental caries, easy to form dental calculus, leading to periodontal disease. 2. The anterior teeth are also called "ground bag" pockets, which are characterized by the lower teeth occluding the upper teeth. Some people only have teeth and jaws. Some people not only have teeth and jaws, but also facial bones are deformed. The jaw is characterized by insufficient development of the maxilla--retraction, over-development of the mandible--protrusion, resulting in a depression in the middle of the face and a crescent shape on the side, affecting the appearance and function. 3. In patients with interdental spaces, there are many gaps between the teeth. 4. Deep coverage: also known as "toothy teeth", some only appear as the upper anterior or lower anterior teeth; some are skeletal deformities. Some of these people have the upper anterior and upper gums protruding too far forward, while the chin squats behind the upper lip, or there is no chin at all. 5. Bimaxillary protrusion, or protrusion of the upper and lower anterior teeth, causing the lip to protrude, the lips can be closed with force, and the patient with open lips and teeth. 6. Locking jaw: patients with no occlusal function 7. The posterior teeth are anti-jaw and lock the jaw: affecting the function of tooth occlusion, which may lead to partial deformity of the upper and lower jaw. 8. Deep-covering (the anterior teeth are too deep) patients: the anterior teeth are not visible when they are occluded; some people are accompanied by skeletal deformities, which appear as the lower part. This deformity is easy to bite the upper gums, and is also prone to periodontitis and facial joint diseases of the anterior teeth. Contraindications The patient is too old and should be filled with poor general condition. Preoperative preparation 1. Bite the teeth: (that is, take the model) for the diagnosis and design of the doctor's right and wrong, and in the subsequent treatment process. 2, photography: Before the doctor, the doctor should routinely give the patient a photo of the face and occlusion, and leave it to be compared with the end of the treatment. 3, X-ray examination: each patient routinely photographed the lateral side of the skull and the full-face curved tomogram. 4, develop a treatment plan: doctors based on models, photos and X-ray films, after measurement, calculation, diagnosis of the type of mismatch. And develop a detailed treatment plan. 5. The doctor then explains the treatment plan to the patient and the patient's family and solicits the opinions of the patient and the family. After the treatment plan is determined, the patient or patient's family member signs the consent form. Surgical procedure 1, filming Take X-ray teeth and head bone photos. The purpose is to see your teeth and bones in the direction of development. In order to facilitate the development of accurate correction methods in the future, use a quick-set glue to put on your teeth, take a bit of 1-2 minutes to remove, and become a model of your teeth. Spare, also for the convenience of correction and comparison. The doctor will take photos of the teeth at various angles between corrections. 2, tooth extraction According to the plan made by the doctor, the teeth are extracted in batches. The average person needs to pull about 4 teeth, some special ones, such as wisdom teeth, and too many teeth are also pulled out about 8 times. If there is any tooth decay between the two, it will be repaired first. If there is a dental calculus, the tooth will be washed first. 3, the teeth Some of the teeth are taken at the same time as the teeth are extracted, while others are carried out after the tooth extraction. It is usually about 1 week between the upper and lower teeth. The purpose is to remove the teeth from the gap, so that the rim of the fixed braces can be placed while wearing the braces. The splitting is generally a bit sour and weak, and it will be a little painful when the upper and lower teeth touch it! 4, upper braces After the tooth is finished, you can directly apply the 3M braces. Your dental assistant or orthodontist will dry your teeth and "etch" them. Etching can treat the surface of your teeth to add bonding material to secure the braces. Then tie the braces to your teeth. The high intensity plasma light then quickly hits the surface of the mouthpiece to complete the bond. The archwire is ligated to the braces. complication 1. The teeth become loose: under normal conditions, each tooth has a certain physiological motility so as to buffer the chewing pressure and prevent the teeth from being traumatized. When doing orthodontic treatment, the tooth looseness increases, which is a normal reaction. However, the side effects of this orthodontics are recoverable. The alveolar bone and periodontal ligament reconstruction are required for the tooth to move, mainly because the tooth is fixed in the alveolar bone by the periodontal ligament, so that the tooth becomes loose. However, after the orthodontic treatment stops moving to the normal position, the teeth can be stabilized by the reattachment of the periodontal membrane by their own repairing ability, and permanent damage does not occur. Therefore, if the tooth looseness is found to be too large in the clinic, the force should be suspended and the force should be continued after a period of recovery. 2, the impact on the pulp: in the early treatment of orthodontics, a mild, temporary inflammatory reaction in the pulp, showing that the patient has pain or discomfort in the first few days of the home, but the experiment proves that this The impact is not clinically significant. This is also one of the side effects of orthodontics, but it is temporary.