Objective Aim of this study was to calculate the space for levelling the curve of Spee in digital models, and compare with the traditional method used in orthodontic practice.

目的比较传统模型与三维数字化模型在间隙分析中的差异，并且应用数字化模型来准确计算平整牙弓所需间隙，验证传统模型分析中对平整牙弓所需间隙的方法是否正确。

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Popular items include gherkins from the Spree forest and sausages from Thuringia, as well as Rot-Weiss toothpaste, Spee washing powder and chicken-shaped plastic egg cups in various colours.

ECONOMIST: A wild repackaging of German history