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Is there an age limit for orthodontics?
There is no age limit for orthodontics.

From babies over three years old to elderly people in their sixties and seventies, they can be corrected. After correction in the growth and development period, bone cells grow rapidly and set quickly after correction for about half a year; Adult osteoblasts grow slowly, and the older they are, the longer the shaping time after correction, which is generally 1 year to 1 year and a half; However, from malocclusion to normal occlusion, there is little difference in the required correction time.

Principles of orthodontics

Teeth grow in alveolar bone, which is nested and surrounded by periodontal ligament. Both alveolar bone and periodontal ligament are reconstructive and plastic. Under the action of external force, the teeth can move slowly in the alveolar bone, generally moving 1-2 mm a month, without causing damage to the teeth and alveolar bone. If it exceeds 2 mm, both teeth and alveolar bone will be damaged. The upper limit of exercise is about 7 mm, so some "earth-covering days" need osteotomy.

Influence of occlusal deformity

1. Influence on face shape

Occlusal deformity will affect the development of soft and hard tissues in maxillofacial region, leading to the formation of large teeth and deep occlusion, thus changing people's appearance.

2. Malocclusion will reduce chewing efficiency, abnormal pronunciation, dysphagia and dyspnea.

3. Psychological influence. For example, people with big teeth will feel inferior, unsociable and withdrawn, which will affect their career development.

Matters needing attention in orthodontic treatment

1. It is normal to have slight pain after orthodontic force. If the pain lasts for several days and is unbearable, see a doctor in time if the mandibular joint has abnormal response, so as not to damage the teeth and mandibular joint by excessive force.

2. Follow the doctor's advice on time, let the doctor know the progress of correction in time, and adjust the correction plan in time.

3. Maintain oral hygiene and avoid periodontitis and gingivitis.

4. Wear the retainer according to the doctor's advice after correction to avoid rebound and increase the correction time.