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.
Evolution of the coefficient of thermal expansion (CTE) and Young's modulus for the alumina/porcelain and zirconia/porcelain restorations with sharp transition, intermediate composite layer and stepwise graded interlayer at room temperature.
