6.3 What is the best way to hold my hand?

NOTE: There are hand positions that cannot be used properly. This is because when casting plaster, air is trapped in the alginate. This will result in missing fingertips.

Make sure that the air can always escape (diagonally) upwards. If a finger is bent, this is not possible. In that case, the fingertip must touch the palm, so that the air can still escape via the palm. In the good examples of the fist and the shooting position, the fingertips that are bent touch the palm so that the air can escape via the palm.

The bent fingers in the wrong examples do not touch the palm. The red spots indicate where air is trapped and cannot escape. These often become missing fingertips.