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Objectives: To assess the prevalence of sella turcica anomalies on lateral cephalograms of children with malocclusion. To describe the craniofacial morphology in patients with sella turcica anomalies. Methods: Lateral cephalograms obtained at ages 8-16 years (n 5 431) were assessed for good visibility of cephalometric structures, including the sella turcica, and the absence of craniofacial congenital deformities; finally, 322 cephalograms were included and analysed. Subsequently, anomalies of sella turcica have been identified. Hypertrophic posterior clinoid process, hypotrophic posterior clinoid process and oblique contour of the floor were the abnormalities found that could not be classified based on literature. The study group consisted of 151 cephalograms with abnormal sella turcica, while the control group consisted of 171 cephalograms without any sellar pathology. Data normality has been tested using Shapiro-Wilk test. Correlations with age were made using Spearman correlation coefficient and those with sex were made using independence test with Yate's correction for continuity. Mann-Whitney test was used to compare between groups and subgroups. The level of significance has been established as p , 0.05. Results: Sellar anomalies were found in 151 individuals (46.9%). Statistically significant differences between patients with normal and abnormal sellar morphology were found concerning: Pg:NB (p 5 0.0009), 11:NA (p 5 0.0004) and 12:NB (p 5 0.012), indicating a more distal position of jaw structures in subjects with abnormal sella. Conclusions: The finding that almost 50% of children with malocclusion have sellar abnormalities confirms a general aetiology of malocclusion. Sella turcica assessment should be carried out during cephalometric analysis.

A comparison was made of sirolimus-eluting stents and bare stents as an effective means of treatment of stenosis in crural arteries. Patients were randomly divided into two groups: (1) patients treated with sirolimus-eluting stents and (2) patients treated with bare stents. Each group consisted of 25 patients, and every patient had one stent implanted. All patients showed symptoms of ischemia of the peripheral arteries, classified according to the Rutherford scale into categories 3, 4, and 5. All patients were examined 24 h before and 24 h and 6 months after the intervention. The results were analyzed according to clinical, hemodynamic, and angiographic criteria. Technically, the procedure was successful in 100% of cases, and both groups presented an equal improvement in clinical and hemodynamic parameters. The follow-up angiographic examination demonstrated a significantly lower rate of restenosis among the sirolimus-eluting stent group (4, 16%) versus the bare stent group (19, 76%) (p < 0.001), with lower target lesion revascularization in 3 (12%) versus 14 (56%) (p < 0.05), respectively. Quantitative angiography demonstrated that all variables used to assess restenosis were superior for sirolimus-eluting stents 6 months after intervention: late lumen loss 0.46 +/- 0.72 versus 1.70 +/- 0.94 (p < 0.001) and minimal lumen diameter 2.25 +/- 0.82 versus 0.99 +/- 1.08 (p < 0.001). Results of this study reveal that the use of sirolimus-eluting stents decreases the risk of restenosis in comparison to standard stents.

A study of the symmetry of roots and root canal morphology in mandibular anterior teeth using cone-beam computed tomographic imaging in a Polish population A study of the symmetry of roots and root canal morphology in mandibular anterior teeth using CBCT imaging in a Polish population Abstract Background: The purpose of the study was to analyze mandibular anterior teeth in a Polish population and determine the symmetry of root and root canal morphology between the right and left side using cone-beam computed tomography scanning. Materials and methods: From 111 cone-beam computed tomography (CBCT) examinations, 303pairs of equivalent mandibular anterior teeth were analyzed on the right and left sides to evaluate symmetry. Axial, sagittal, and cross-sectional slices with a thickness of 0.2-0.25 mm were used.The number of root canals and their internal patterns were classified following Vertucci's criteria.Results: All incisors in this study had 1 root. Canines usually had a single root and much less often had 2 roots. Type I and III root canal configurations were found most often, while type V and II configurations were less frequent. Significant compatibility between the left and right side was observed in all evaluated variables. Incisors had the highest symmetry with regard to the number of roots (100%). Second canals were observed more often in males than females, but only the results in lateral incisors were significant. Conclusions:This study provides supplemental information for dentists and should help them to better predict the morphology of mandibular anterior teeth in complicated cases in the Polish population. Symmetry was observed in roots and root canal morphology in all examined parameters.