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Statement of the Problem. The clinical significance of condyle-fossa relationships in the temporomandibular joint is a matter of controversy. Different studies have evaluated whether the position of the condyle is a predictor of the presence of temporomandibular disorder. Purpose. The purpose of the present study was to investigate the condylar position according to gender in patients with temporomandibular disorder (TMD) and healthy controls using cone-beam computed tomography. Materials and Methods. CBCT of sixty temporomandibular joints in thirty patients with TMD and sixty joints of thirty subjects without TMJ disorder was evaluated in this study. The condylar position was assessed on the CBCT images. The data were analyzed using Pearson chi-square test. Results. No statistically significant differences were found regarding the condylar position between symptomatic and asymptomatic groups. Posterior condylar position was more frequently observed in women and anterior condylar position was more prevalent in men in the symptomatic group. However, no significant differences in condylar position were found in asymptomatic subjects according to gender. Conclusion. This study showed no apparent association between condylar positioning and clinical findings in TMD patients.

(2015) A new X-ray contrast agent based on highly stable gum arabic-gold nanoparticles synthesised in deep eutectic solvent, Journal of Experimental Nanoscience, 10:12, 911-924, DOI: 10.1080/17458080.2014 To link to this article: https://doi.org/10.1080/17458080.2014.933493 This paper reports a novel method of fabricating gum arabic coated gold nanoparticles (GA-GNPs) synthesised in a deep eutectic solvent (DES) for use as a new X-ray contrast agent. GA-GNPs were prepared simply by mixing a solution of 0.01% DES, GA and tetra chloroauric (III) acid at room temperature. DES was prepared using choline chloride (ChCl), gallic acid and glycerol as the precursors. A complete characterisation study of GA-GNPs was undertaken using transmission electron microscopy, dynamic light scattering, X-ray diffraction analysis. In vitro study of the as-prepared GA-GNPs revealed the high potential of these nanoparticles as X-ray contrast agents. Compared with the common clinically available CT contrast agent, Visipaque, the synthesised GA-GNPs showed more than three fold X-ray attenuation coefficient. GA-GNPs were found to be remarkably stable in biological media. The development of such nontoxic, biocompatible nanostructures could be an advancement in diagnostic nanomedicine.