Teeth are very important to a person’s appearance. Many people have good-looking teeth, so they look good when they smile. However, some people’s teeth are not good-looking, so they think of orthodontic treatment. , Orthodontic correction is more common now. Some people may have their teeth extracted. Does orthodontic treatment require tooth extraction? Do teeth need to be extracted for orthodontic treatment?

1. Is tooth extraction required for orthodontic treatment?

Whether tooth extraction is necessary for orthodontic treatment depends on the condition of your own teeth.

The main purpose of tooth extraction is to relieve crowding and provide sufficient space for the dentition, because dentition crowding is the most common malocclusion symptom, accounting for about 70% of malocclusions. Generally speaking, mild For crowding (crowding degree is about 2-4mm), the method of increasing the length or width of the dental arch can be used to obtain limited space without tooth extraction and correction; for moderate crowding (crowding degree is about 5-9mm), tooth extraction should be used to relieve crowding in most cases; For severe crowding (when the crowding degree reaches 10mm or more), orthodontic tooth extraction is usually required to achieve successful orthodontic treatment.

2. Under what circumstances do people need tooth extraction

1. Patients with crowded teeth. For this type of patients, the tooth volume does not match the bone volume, resulting in dental deformity. Therefore, during orthodontic treatment, a certain number of teeth must be extracted to coordinate the relationship between tooth volume and bone volume, relieve dental crowding, and reduce dental problems. Recurrence of deformity.

2. Patients with facial protrusion. For this type of patient, a certain number of teeth need to be extracted to obtain space, achieve the purpose of retracting the front teeth, moving the back teeth forward, and relieve facial protrusion, thereby making the patient's facial profile more beautiful.

3. Patients who need to correct their bite relationship. Due to the asymmetry of the upper and lower teeth in these patients, teeth need to be extracted to adjust the occlusal relationship.

3. Harm of orthodontic tooth extraction

1. Impact on dental pulp

In the early stage of orthodontic treatment, mild and temporary A permanent inflammatory reaction manifests itself as pain or discomfort in the first few days of orthodontic treatment, but experiments have proven that the harm of this kind of orthodontic treatment is of no clinical significance. The above introduction to the dangers of orthodontic treatment can help people establish a correct understanding of orthodontic methods. At the same time, the dangers of orthodontic treatment also tell people that they should choose a regular hospital for orthodontic treatment to ensure the effect.

2. Impact on tooth roots

This is a relatively common hazard of orthodontic treatment. This is because during orthodontic treatment, the surface of the tooth root is also undergoing reconstruction such as absorption and proliferation. Activity. After treatment, the tooth root returns to normal due to its own repair ability. However, if the treatment force is too strong, the risk of tooth root resorption will increase.

3. Loose teeth

This situation is also a relatively typical hazard of orthodontics. The oral doctor said: Because under normal circumstances, each tooth has a certain physiological Mobility to cushion chewing pressure and prevent tooth trauma. During orthodontic treatment, tooth looseness increases, which is a normal reaction. To move teeth, the alveolar bone and periodontal ligament need to be reconstructed, because the teeth are fixed in the alveolar bone by the periodontal ligament, so the teeth will become loose. However, after the teeth are corrected to the normal position and stop moving, the teeth can reattach the periodontal ligament through their own repair ability and become stable, without permanent damage.

4. How long does it take to correct teeth?

Since adult growth and development have been basically completed, the maxillofacial bone sutures have become bony fusion, the plasticity is very low, and the metabolic rate of adults is very low. It slows down and the biological reactivity decreases. Therefore, the alveolar bone remodeling is relatively slow, the tooth movement is relatively slow, and the treatment time is longer. Therefore, orthodontic treatment for adults cannot be rushed and must be done step by step. If you insist on shortening the time, it will bring adverse consequences.

Children’s orthodontic treatment generally takes about one year, and adult orthodontics generally takes about two years.