Goska J R, Christensen L V
Department of Removable Prosthodontics, Marquette University, School of Dentistry, Milwaukee, Wis.
J Prosthet Dent. 1988 Jan;59(1):42-4. doi: 10.1016/0022-3913(88)90105-9.
The positions that the maxillary right and left first molars occupy when a maxillary cast is mounted in the three-dimensional space of a semiadjustable articulator (Hanau H2) were studied. Mountings were made by using four face-bows, the Hanau Kinematic Face-bow, the Hanau Facia-bow, the Hanau 159 Earpiece Face-bow, and the Hanau Twirl Earpiece Face-bow. A kinematically determined hinge-axis was used arbitrarily as the baseline for comparisons among the three other bows. Deviations from the baseline were measured along the X, Y, and Z axes by using a contour meter (Fig. 1). The deviations showed great variability (Table I), and because maxillary casts are mounted in relation to anatomic landmarks that differ from subject to subject, it was not possible to establish clinical superiority of one face-bow over another.
研究了当上颌模型安装在半可调式牙合架（Hanau H2）的三维空间中时，上颌左右第一磨牙所占的位置。使用四种面弓进行安装，即Hanau运动面弓、Hanau面弓、Hanau 159耳件面弓和Hanau旋转耳件面弓。以运动学确定的铰链轴任意作为其他三种面弓之间比较的基线。使用轮廓仪沿X、Y和Z轴测量与基线的偏差（图1）。偏差显示出很大的变异性（表I），并且由于上颌模型是相对于个体不同的解剖标志进行安装的，因此不可能确定一种面弓相对于另一种面弓在临床上的优越性。
