The horizontal condylar inclination: clinical comparison of different recording methods

Various types of semi-adjustable articulators (arcon and nonarcon), in combination with different interocclusal recording materials (wax and polyether), have been proposed as an easier alternative to extraoral tracing devices or axiographs. There is no consensus as to which combination is the nearest to the recognized standard extraoral tracing devices. This trial measured differences in performance among four combinations of interocclusal recordings in calculating the horizontal condylar inclination (HCl). The mean HCI measurement obtained by axiograph was 50.3 degrees (SD = 10.2) for the right condyle and 52.5 degrees (SD = 9.3) for the left. Of the four tested combinations, the arcon Whip Mix with wax was most likely to reproduce HCI values obtained using the axiograph.