Mavroskoufis F, Ritchie G M
J Prosthet Dent. 1981 Jun;45(6):592-7. doi: 10.1016/0022-3913(81)90417-0.
A investigation of 64 Angle Class I, skeletal Class I dental students showed that the interalar nasal width is a reliable guide for selecting the mold of anterior teeth, and that the incisive papilla provides a stable anatomic landmark for arranging the labial surfaces of the central incisors at 10 mm anterior to the posterior border of the papilla. The mesiodistal width of the set of anterior teeth (four incisor and the mesial halves of the canines) should be determined by adding 7 mm to the patient's nasal width (Fig. 8). The tips of canines on the horizontal plane, should be set on a line which passes through the posterior border of the incisive papilla (Fig. 9). The distance between them should equal the patient's nasal width, so that from the frontal view they would each seem to lie on a perpendicular line drawn from each of ala of the nose (Fig. 6).
对64名安氏Ⅰ类、骨骼Ⅰ类的牙科学生进行的一项调查显示，鼻翼间宽度是选择前牙模型的可靠指标，切牙乳头为将中切牙唇面排列在乳头后缘前方10毫米处提供了一个稳定的解剖标志。前牙组（四颗切牙和尖牙近中半侧）的近远中宽度应通过在患者鼻宽基础上加7毫米来确定（图8）。在水平面上，尖牙尖应位于通过切牙乳头后缘的一条线上（图9）。它们之间的距离应等于患者的鼻宽，这样从正面看，它们各自似乎位于从鼻翼引出的垂直线上（图6）。
