Do a comparison of fabrication precision and mechanical reliability of 2 zirconia implant abutments?
Both types of zirconia abutments demonstrated failure loads that exceed maximum human bite force. In vitro, the AAZ outperformed the AllZirkon in survivability. The clinical use of zirconia abutments is indicated when esthetics may be of concern.
The functional activity of Tregs is compromised in active vitiligo patients. TGF-β1 plays an important role in the autoimmune mechanism of the disease.