Dental articulator simulating jaw movements - has pivot shafts vertically adjustable on top plate which fits in interchangeable extensions of vertical support arms

摘要

The dental articulator, simulating jaw movements, comprises a frame with a bottom horizontal baseplate with a cutting tooth guide plate accommodating a lower jaw model. A top plate is provided, for the upper model, with coaxial horizontal pivot shafts working in condylar bearings. The latter in turn fit in extensions of vertical support arms, joined by a transverse rib, on the baseplate. The pivot shafts (18,19) are adjustable vertically on the top support plate (9), and the extensions (7,8) are interchangeable with others having condylar tracks (12,13) running at different angles.