Niger J Clin Pract
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Comparative Study
Comparison of time-dependent two-dimensional and three-dimensional stability with micro-computerized tomography and wettability of three impression materials.
The objective of this study is to explore time-dependent dimensional stability of three different elastomeric impression materials - vinyl polyether silicone (VPES), vinyl polysiloxane (VPS), and polyether (PE) - through micro-computerized tomography (μ-CT) imaging, allows three-dimensional (3D) imaging and measurement without sample preparation or chemical fixation. Materials and Methods: Thirty specimens were created using 3 mm high, 30 mm wide Teflon molds (n = 10). Specimens were scanned with μ-CT on the 1st (T1) h and 1st (T2), 7th (T3), and 14th (T4) days. 3D models were created at the above-mentioned times, volumetric measurements were conducted and dimensional changes were calculated. Diameters and heights of each impression material were measured with 2D analyses. Furthermore, contact angle measurements of these elastomeric impression materials were collected using the sessile drop method during and after polymerization at 0, 2, 5, 20, 60, 120, and 240 s These measurements were made on specimens (n = 10) prepared in standard sizes using a 50 μm deep stainless steel die with dimensions of 62 mm × 20 mm × 3 mm. ⋯ VPS was found to be the most stable impression material concerning dimensional change and wettability.
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Brucellosis is a highly contagious zoonotic infection affecting livestock and human beings. This study aimed to investigate the prevalence of Brucella in raw milk collected from a provincial center and central villages in the Central Anatolian region. ⋯ The research investigated the prevalence of Brucella in milk samples collected from bovine farms used for consumption and production of raw milk products. The most significant infection route in our region is considered to be consumption of milk and milk products such as raw milk and fresh cheese. Especially in rural areas, households consuming their own produced milk are common. In regions with family-style milk and milk product production and consumption, interventional studies with the aim of improving knowledge, attitudes, and behavior related to zoonotic diseases should not be neglected.
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Multiple sclerosis (MS) is a chronic inflammatory and demyelinating autoimmune disease of the central nervous system. It is known that the disease, which is manifested by a wide variety of symptoms, may exacerbate after anesthesia and show different responses to muscle relaxants in the normal population. It is planned to measure train-of-four (TOF) values of MS patients to be operated under general anesthesia before sugammadex application. ⋯ Sugammadex and TOF patients will increase patient safety in general anesthesia practice.
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Chronic kidney disease (CKD) is a global public health problem with increasing incidence and mortality in Africa. Autonomic dysfunction (AD) has been implicated as a major contributor to the disease morbidity and mortality, but little is known about the predictors of this dysfunction in African populations. Understanding the predictors of this condition is necessary for early detection and management of CKDs. Objectives: This study was designed to determine the predictors of AD in CKD patients in Nigeria. ⋯ AD is common among predialysis CKD patients in Nigeria, and best predicted by the presence of postural dizziness, nocturnal diarrhea, and impotence in men. Physicians should, therefore, be on the lookout for these features for prompt and adequate management of cases.
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A broad spectrum of renal vascular variations has been reported by anatomists and radiologists. The prevalence of these variations is extremely divergent in different populations. Therefore, radiologists and surgeons in different climes must be knowledgeable about the type and prevalence of the variants in their area of practice to avoid diagnostic pitfalls and for optimization of surgical techniques. ⋯ Variation of renal vascular anatomy is a frequent finding among Nigerians. Radiologists and surgeons must be aware of these variants for optimization of surgical techniques.