Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
After impression setting, withdrawal is usually achieved by adding a prying force onto the handle of the custom tray. In this process, the impression has the possibility to be peeled off from the tray if they do not have enough bond strength. The test block was used to simulate the peel-off action of the custom tray and measure the maximum peel-off strength.
