Figure 5.
Images of failure interface (×30) without- and with aging: (a,i) enamel surface; (b–d,j–l) Y-TZP surface; (e–h) and (m–p) debonded bracket surface. Abbreviations: R, resin; rr, resin captured by retentive beads of bracket.
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.