正畸矫治过程中,理想的矫治状态是只有牙槽骨的吸收,没有或只有少量牙骨质吸收。然而,实际上承受到压力的牙骨质有时也难免会出现破骨细胞(或破牙骨质细胞)而发生吸收,若压力过大或压力持续时间过长,即使有类牙骨质保护,牙根也会出现明显的吸收现象。牙根吸收是正畸牙移动的不良反应之一,已受 Orthodontic treatment process, the ideal state of correction is the only absorption of alveolar bone, there is no or only a small amount of cementum absorption. However, in fact under pressure from the cementum will inevitably appear osteoclasts (or broken alveolar cells) and absorption occurs, if the pressure is too large or pressure duration is too long, even if the type of cementum-like protection, Roots also appear obvious absorption phenomenon. Root resorption is one of the adverse reactions of orthodontic tooth movement, has been affected