Shallow overbite, open bite, long face, lip fullness of poor patients in the treatment process to control the molar rise is particularly important in the treatment plan will increase the overbite cooperation one of the goals , the molars in the treatment process will be suppressed. Using conventional means, the principle of action and reaction to suppress the force applied to the depressed molars, must produce an elongation of the force on the other teeth; normally anchorage in premolar elongation sharp double the results of teeth will also reduce the overbite, high, add the following to dental equipment reduce the fullness of lips, so it seems, does not really depress the effect of molar anchorage less than make treatment discount.
If the posterior teeth due to caries or other reasons as early as lost and can not be repaired in time, there will be a series of questions: adjacent teeth inclined rotation, on the occlusal tooth elongation. Repair therapy, it is necessary to increase the amount of cutting of tooth structure; What is more, the elongation of occlusal tooth may need root canal treatment or even removal of. In order to avoid these situations, the course of treatment should suppress the elongation of the teeth. However, it is very difficult to absolutely suppress the molar clinical traditional orthodontic methods, the design of complex appliance, or as much as possible in order to enhance the anchorage teeth in the treatment system, these methods, in addition to patient inconvenience anchorage teeth, there would be elongation and Brief Analysis of the minimally invasive painless tooth extraction tilt, the effect is often inaccurate. How best to solve these problems is the orthodontic physicians often need to face the problem.
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