der biss ® – the app

is, like all good apps, self-explanatory.

play: After being shown a tooth at random, your task is to identify it according to the ISO system.

The next tooth appears as soon as you enter the code. Whether you have answered correctly or not is signalled both visually (green or red) and by a sound (with five to choose from).

learn: Enter an ISO number and the relevant tooth is immediately displayed.

Two levels of help (help and help+) are available to assist you.

The app tests your speed as well as your knowledge – so it’s worth practising.