What is the principle of orthodontics? Does it have a negative impact on the dental nerve? The principles of orthodontics are actually different, involving tissue development, biomechanics, mechanical mechanics, and material properties, so I will explain the general principles of the most popular fixed orthodontic techniques, which is the part most patients are more curious about and better understand. To answer the first question in layman’s terms, orthodontics utilizes a mechanism of destruction and regeneration. First of all, we know that regardless of age, people are in a constant metabolism, old cells die, new cells are formed, and so on and so forth. On the other hand, the teeth are located in the alveolar bone, that is, the roots are surrounded by bone, and we should note that the teeth are very hard, which is significantly different from the bone hardness. If we apply a constant force to the bone (of course the force acts on the tooth), the tooth is relatively hard and the right force will not cause much change in the tooth, while the corresponding alveolar bone on the side under pressure will be slowly destroyed and slowly resorbed. The pull on the other side of the alveolar bone in turn allows them to slowly rebuild and regenerate. The alveolar bone is characterized by rich blood circulation, so it is metabolically active and has a strong capacity for reconstruction. Thus, the force on the tooth is transmitted to the alveolar bone, the bone is resorbed and regenerated, and the tooth moves. It’s that simple. Here is the answer to the second question So, will it affect the dental nerve? There are two sides to everything, moderate is beneficial and excessive is harmful, this is always true. It is not true that there is no change in the movement of teeth, but the change is very small, because the hardness of the two is different, and the speed of movement is very slow, inappropriate analogy, a chopper cutting meat, the chopper has wear but minimal, the main change is in the meat. Teeth in the apical region will generally have a certain amount of resorption, but are very small, almost negligible. Also the nerve is very easy to alter because it is softer with better ductility, because the tooth moves really slowly. We emphasize that the right force is used to move the teeth, and the right degree is that the reconstruction of the alveolar bone on the tension side can keep up with the resorption of the alveolar bone on the pressure side generated by the movement of the teeth, which simply means that I demolish here, you build there, and we build a beautiful home in harmony. (This is also the reason why I like orthodontics very much and choose it, it will not plunder anything while bringing beauty.) If the teeth are moved with inappropriate force, there will be a lot of problems. If the teeth are removed too hard, the scene will be unmanageable, root resorption, pulp necrosis (you can understand that the nerve is pulled off), and all kinds of problems can happen. Also take into account the age of the patient (people have to serve the old, young children is a strong regenerative capacity you how!) The degree of crowding of the teeth (that is, the length of the distance the teeth need to travel), the shape of the face bone (okay! Stop it! (These are the problems that doctors need to headache to give you no sense.) So in summary orthodontics is a very good thing, while young quickly resolve to do it, need to pay attention to is to find a good doctor, and then a proactive attitude to cooperate with him, support him, and then wait patiently, you can reap the benefits of neat teeth.