Improving the accuracy of a new articulator

The indications and features of the new Denar Combi articulator are reviewed. The Combi articulator was designed primarily as a set path instrument, but can also be used as a semiadjustable or fully adjustable stereographic articular. The articulator can be programmed for any of these modes, but the Combi model is limited when used as a stereographic instrument according to the manufacturer's instructions, with the instrument-precipitated geometric errors. These errors were identified mathematically, and an accurate technique for the instrument is described.