摘要
The purpose of this experiment is to investigate the effect of pulsed electromagnetic field (PEMF) and biomechanical force on orthodontic tooth movement by means of measurement of gross tooth movement anatomic data, light microscopic evaluation and transmission electromicroscopic evaluation. The results indicate that PEMF combined with biomechanical force could accelerate the rate and amount of orthodontic tooth movement, enhance bone deposition in tension side and resorption in compression side. The results also suggest that PEMF could accelerate orthodontic tooth movement as a result of increase in quantity of active cells, PEMF couldn’t change the ultrastructure of cells.
The purpose of this experiment is to investigate the effect of pulsed electromagnetic field (PEMF) and biomechanical force on orthodontic tooth movement by means of measurement of gross tooth movement anatomic data, light microscopic evaluation and transmission electromicroscopic evaluation. The results indicate that PEMF combined with biomechanical force could accelerate the rate and amount of orthodontic tooth movement, enhance bone deposition in tension side and resorption in compression side. The results also suggest that PEMF could accelerate orthodontic tooth movement as a result of increase in quantity of active cells, PEMF couldn't change the ultrastructure of cells.
