Comparison of Bone Loss around Bone Platform Shift and Non-Bone Platform Shift Implants After 12 Months.

Objectives: The aim of the present randomized clinical trial was to evaluate marginal bone loss around two types of implants modified at the neck area: Nobel Active and Nobel Replace Groovy, both manufactured by Nobel Biocare.

Materials And Methods: A total of 25 Nobel Active and 21 Nobel Replace Groovy implants were included in the present study. The implants were placed based on the relevant protocol and patient inclusion and exclusion criteria.

The effect of background and ceramic thickness on the color of an all-ceramic restorative system.

Objective: Evaluation of the color change of a semileucent ceramic system with different core-veneer thicknesses and backgrounds.

Materials And Methods: Thirty disk-shaped specimens with different thicknesses of core-veneer were prepared with IPS-Empress 2 and IPS-Eris glass ceramic and four backgrounds were prepared.

Results: Color differences were significantly influenced by total ceramic thicknesses and backgrounds (p < 0.