Although visible light-polymerized acrylic resins have been used in removable partial dentures, it is not clear whether the presence of a metal framework could interfere with their polymerization, by possibly reflecting the light and affecting important properties, such as roughness and hardness, which would consequently increase biofilm accumulation. The aim of this study was to compare the ro...

The purpose of the current study was to evaluate the performance of two laboratory light polymerization systems used to polymerize an indirect composite (Sinfony). A two-step polymerization system (Visio-Alfa and Beta) and a halogen-metal halide unit (Twinkle MIII) were assessed. The composite was polymerized either with the Visio units or with the MIII unit for different exposure periods. Knoo...

Calsequestrin (CASQ) is the major component of the sarcoplasmic reticulum (SR) lumen in skeletal and cardiac muscles. This calcium binding protein localizes to the junctional SR (jSR) cisternae where it is responsible for the storage of large amounts of Ca 2+ while it is usually absent, at least in its polymerized form, in the free SR. The retention of CASQ inside the jSR is partly due to its a...

STATEMENT OF PROBLEM Clinical studies comparing the retention values of milled denture bases with those of conventionally processed denture bases are lacking. PURPOSE The purpose of this clinical study was to compare the retention values of conventional heat-polymerized denture bases with those of digitally milled maxillary denture bases. MATERIAL AND METHODS Twenty individuals with complet...

The relationship between polymeric hydrogel microstructure and macroscopic properties is of specific interest to the materials science and polymer science communities for the rational design of materials for targeted applications. Specifically, research has focused on elucidating the role of network formation and connectivity on mechanical integrity and degradation behavior. Here, we compared t...

Antigen-induced activation of bone marrow-derived (B) lymphocytes involves interactions between specific antigenic determinants and immunoglobulin receptors on the lymphocyte surface (1). Soluble antigens such as serum proteins can trigger B lymphocytes only if thymus-derived (T) cells are provided (2), thus implying a requirement for some element besides a simple antigen-receptor interaction. ...

Loop quantum gravity inspired partial polymer quantization in four-dimensional spacetime leads to a globally regular black hole with single horizon. The polymerized metric is characterized by the minimum length parameter $k$, and mimics Schwarzschild weak-field limit. We present an analytic numerical investigation of strong gravitational lensing shadow morphology determine observational impacts...

dentin bonding agents (dba) have been used as root-end filling materials. present study evaluated the effects of polymerized dba on secretion of pro-inflammatory cytokines by normal human monocytes. in this study, monocytes were directly isolated from human peripheral blood, and exposed to cured scotch bond 1 (single bond) and prime and bond for 36 and 72 hours. secretion of il-1β and tnf-α in ...