Question

When loading a tray for an upper impression, place ______.

1) The tray on the upper arch
2) The tray on the lower arch
3) The tray on the side
4) The tray on the front

Answer 1

When loading a tray for an upper impression, the tray should be placed on the upper arch.

Step-by-step explanation:

When loading a tray for an upper impression, the tray should be placed on the upper arch. This is because the upper arch is the part of the mouth that needs to be replicated in order to create an upper dental impression. Placing the tray on the upper arch ensures that the impression is accurate and captures the necessary details of the upper teeth.