Ortman H R, Tsao D H
J Prosthet Dent. 1979 Nov;42(5):492-6. doi: 10.1016/0022-3913(79)90240-3.
The average distance between the most anterior point of the maxillary central incisors and the most posterior point of the incisive papilla was 12.454 mm with a standard deviation of 3.867 mm. This distance was measured when these two points were projected on a plane which was parallel to the reference plane formed by the tips of three interdental papillae; i.e., the papilla between two central incisors (A), between the first and second molars on the right side (R), and on the left side (L). The average error incurred due to inconsistency of the method employed was less than 3% or less than 0.372 mm for the position of the central incisor. It is believed that the application of this anatomic relation can provide a reliable point for arranging and checking the position of the anterior maxillary teeth for complete dentures.
上颌中切牙最前点与切牙乳头最后点之间的平均距离为12.454毫米，标准差为3.867毫米。该距离是在这两点投影到一个与由三个牙间乳头尖端形成的参考平面平行的平面上时测量的；即两颗中切牙之间的乳头（A）、右侧第一和第二磨牙之间的乳头（R）以及左侧的乳头（L）。由于所采用方法不一致而产生的平均误差小于3%，对于中切牙位置而言小于0.372毫米。据信，这种解剖关系的应用可为全口义齿上前牙的排列和位置检查提供一个可靠的点。
