FAST MOVEMENT OF TEETH DURING ORTHODONTIC TREATMENT

Teeth movement is a complex phenomenon. According to pressure tension theory teeth movements occur in three stages- obstruction in blood flow after the application of pressure to the periodontal ligament, release of chemical messengers & activation of bone resorption. Although the current clinical systems in orthodontics use mechanical forces to induce bone remodeling, several researchers have suggested that there might be ways to increase the cellular activities with agents more potent than mechanical force alone. Scientific interest has been focused on chemical or electrical stimuli in combination with mechanical forces for more rapid bone turnover & faster tooth movement .prolonged orthodontic treatment sometimes causes obstacles in the progress of a person mentally as well as physically. A many of articles were reviewed in tooth movement. Researchers found biological method of tooth movement cytokine, parathyroid hormone (PTH), vitamin D & receptor activator of nuclear factor kappa B ligand (RANKAL), receptor activator nuclear factor(RANK), osteoprotegerin (OPG) show good results. Surgical methods & instrument related studies also show increase in the teeth movement by reliving barrier of bone to fast movement & achieve the goal of orthodontic treatment.