Department of Stomatology, Anatomy and Human Embryology, Rey Juan Carlos University, Madrid, Spain.
Eur J Orthod. 2012 Jun;34(3):322-6. doi: 10.1093/ejo/cjr020. Epub 2011 May 11.
The aim of this study was to determine and compare the visual accuracy of students and experienced orthodontists in distinguishing the different skeletal classes and facial biotypes using only lateral photographs. A group of 19 orthodontic students (4 males and 15 females, aged between 23 and 30 years) and 9 experienced orthodontists (three males and six females, aged between 30 and 56 years) were shown a slide presentation of 100 (50 males and 50 females) patients aged between 8 and 42 years and were asked to indicate the skeletal class and the facial biotype of each subject. Data were analysed using a one-way repeated measures analysis of variance, with Bonferroni post hoc adjustment for multiple testing. P-values less than 0.05 were considered statistically significant. Only 32.75 per cent of the participants identified the facial biotype of the patients with respect to Rickett's vertical (Vert) pattern and 47.96 per cent the skeletal class. The students performed better than the experienced orthodontists (P < 0.05) but only for skeletal class. The results indicate that lateral photographs are not sufficient for determining the skeletal class or facial biotype of patients.
本研究旨在确定和比较学生和经验丰富的正畸医生仅通过侧位片来区分不同骨骼类型和面部类型的视觉准确性。一组 19 名正畸学生（4 名男性和 15 名女性，年龄在 23 岁至 30 岁之间）和 9 名经验丰富的正畸医生（3 名男性和 6 名女性，年龄在 30 岁至 56 岁之间）观看了 100 名（50 名男性和 50 名女性）年龄在 8 岁至 42 岁之间的患者的幻灯片演示，并被要求指出每位患者的骨骼类型和面部类型。数据使用单向重复测量方差分析进行分析，并使用 Bonferroni 事后检验进行多重比较。P 值小于 0.05 被认为具有统计学意义。只有 32.75%的参与者能够根据 Rickett 的垂直（Vert）模式识别患者的面部类型，47.96%的参与者能够识别骨骼类型。学生的表现优于经验丰富的正畸医生（P < 0.05），但仅在骨骼类型方面。结果表明，侧位片不足以确定患者的骨骼类型或面部类型。
