The international dental notation was introduced in 1971. In practice, this dental denomination scheme has also asserted itself in Germany. In the international dental notation, the dental quadrants of the patient are numbered consecutively, whereby the upper right quadrant receives the digit 1, the upper left quadrant the digit 2, the lower left quadrant the digit 3 and the lower right quadrant of the patient the digit 4. In order to distinguish the permanent teeth from the milk teeth, the quadrants in the milk teeth are given the digits 5 to 8. The teeth are also numbered consecutively in the respective quadrants from the centre line, 1 to 8 in the permanent teeth and 1 to 5 in the milk teeth.

The international dental notation is a two-digit notation in which the digit of the dental quadrant is named first before the digit of the respective tooth.

In the dental notation scheme acc. to Haderup, the teeth are also consecutively numbered from the centre line. To distinguish between the two jaws, a “+” is added to the digit of the respective teeth in the upper jaw and a “-“ is added to the digit of the teeth in the lower jaw. A “0” is placed before the digits to characterise milk teeth.