Systematic review on effects of experimental orthodontic tooth displacement on brain activation assessed by fMRI.

Background: Orthodontic treatment is often accompanied by discomfort and pain in patients, which are believed to be a result of orthodontic tooth displacement caused by the mechanical forces exerted by the orthodontic appliances on the periodontal tissues. These lead to change blood oxygen level dependent response in related brain regions.

Objective: This systematic review aims to assess the impact of experimental orthodontic tooth displacement on alterations in central nervous system activation assessed by tasked based and resting state fMRI.

Antimicrobial efficiency and cytocompatibility of different decontamination methods on titanium and zirconium surfaces.

Objectives: The purpose of this study was to investigate the efficiency of different implant-decontamination methods regarding biofilm modification and potential cytotoxic effects. Therefore, the amount of biofilm reduction, cytocompatibility, and elementary surface alterations were evaluated after decontamination of titanium and zirconium surfaces.

Material And Methods: Titanium and zirconium disks were contaminated with a newly developed high-adherence biofilm consisting of six microbial species.