Manufacturers generally quote indentation hardness values when predicting the clinical wear potential of newly introduced ceramic restoratives. The objective of this study was to determine whether in vitro two-body wear correlated well with hardness. A modified polisher was used to abrade enamel cylinders against polished disks of commercially available dental porcelains and glass. Enamel loss after four h was measured with a micrometer. Five ceramic materials were tested, and enamel abrasion rates were correlated with Knoop hardness values. Dicor and Dicor coated with a shading porcelain were found to cause the lowest wear of enamel. These rates were statistically significantly lower than those obtained with Optec, the most abrasive material. These findings may be due to microstructural differences between the materials. Knoop hardness showed poor correlation with the results of the abrasive testing.

Implementation of an interprofessional huddle may contribute to decreasing high-risk transfers to the ICU. Initiating a daily huddle was well received and allowed for open lines of communication across all provider groups.

Extremity muscles are grouped and divided by strong fascial membranes into compartments. Multiple pathological processes can result in an increase in the pressure within a muscle compartment. An increase in the compartment pressure beyond the adequate perfusion pressure has the potential to cause extremity compartment syndrome. There are multiple sites where compartment syndrome can occur. In this article, an arm and forearm compartment syndrome ensued secondary to a minor crushing injury that lead to supracondylar and medial epicondylar non-displaced fractures. A pure motor radial and ulnar nerve deficits noted on presentation, worsened with progression of the compartment syndrome. Ultimately, a surgical fasciotomy was carried out to release all compartments of the right upper arm and forearm.