| 摘要 |
This invention relates a dental articulator comprising substantially a lower frame portion with means for securing the mounting plate for the lower jaw model and a supporting platform for the incisor guide pin, a vertical frame portion rigidly connected to the lower frame portion and having two balls serving as condyles which are mounted on two supporting stems, and an upper frame portion with the two radially rotatable ball sockets serving as fossae and including a rear ball guiding means and an inner ball guiding means angularly adjustable relative to the rear ball guiding means, the bearing shaft, the means for securing the mounting plate for the upper jaw model, and an adjustable incisor guide pin, in which the inner ball guiding means angularly adjustable relative to the rear ball guiding means constitutes an exchangeable, optionally grindable segment of a circle bearing against the circular inner wall of the ball socket, and a lockable slide serves to lock the ball in the corner formed by the rear ball guiding means, the angularly adjustable inner ball guiding means, and the upper ball guiding surface, which slide is arranged opposite or diagonally opposite the corner formed by the rear ball guiding means and the angularly adjustable inner ball guiding means such that after locking the end of the slide rests on the lower half of the ball. |
