Abstract: A lower jaw moving function readjusting apparatus, which includes: an upper and lower triangular shaped plate; a front receiving tray and two rear receiving trays fixedly mounted on the triangular shaped lower plate, a front scribing needle and two rear scribing needles, each of which has a lower end which is positioned in hardenable material located in each of the front and rear receiving trays. The needles are suspended from the upper support plate and the height of at least one of the needles is adjustable. The upper and lower springs are hinged together so as to be pivotably opened or closed and the upper springs and lower springs are secured, respectively, to the upper and lower support plates.