The purpose of this study was to examine the possible association between cheilitis and allergic reactions, and to use allergy skin tests to identify the allergens that induce allergic reactions in cheilitis patients (type I and type IV). We included 50 patients with recurrent cheilitis (reversible cheilitis) who were dermatologically examined and agreed to undergo allergy skin tests, i.e.
View Article and Find Full Text PDFExposure to nanoparticles (NPs) in pregnancy is increasingly linked to adverse effects on embryo-fetal development and health later in life. However, the developmental toxicity mechanisms of NPs are largely unknown, in particular potential effects on the placental secretome, which orchestrates many developmental processes pivotal for pregnancy success. This study demonstrates extensive material- and pregnancy stage-specific deregulation of placental signaling from a single exposure of human placental explants to physiologically relevant concentrations of engineered (silica (SiO) and titanium dioxide (TiO) NPs) and environmental NPs (diesel exhaust particles, DEPs).
View Article and Find Full Text PDF(1) The objective of this study was to assess which digitization method produces the biggest deviation in the 3D images of tooth size from plaster models made using alginate impressions, which are considered the gold standard in orthodontics. (2) The sample used in this study included 30 subjects (10 males and 20 females). Measurements were made on four types of models: (1) digital models obtained through intraoral scanning and digitized models of plaster cast made from (2) alginate impressions, (3) silicone impressions, and (4) conventional plaster models.
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