objective: the purpose of this study was to evaluate the solubility of three luting cements in artificial saliva. materials and methods: twenty disks (10×4 mm) of polycarboxylate, zinc phosphate and glass ionomer cements were prepared according to manufactures’ instructions. after setting, they were desiccated and each ten specimens were immersed in artificial saliva with special ph (3 or 5), c...

This paper investigates the effect of curing temperature on the hydration, microstructure, compressive strength, and transport of cement pastes modified with TiO₂ nanoparticles. These characteristics of cement pastes were studied using non-evaporable water content measurement, X-ray diffraction (XRD), compressive strength test, electrical resistivity and porosity measurements, and scanning elec...

BACKGROUND Acetabular cementation during total hip arthroplasty is considered difficult mainly due to the appearance and anatomy of the acetabulum. Improved cementation technique has been shown to improve the longevity of acetabular components. METHOD We designed a ceramic model to investigate the effect of varying the initial cement pressurization and cup introduction times on the depth of c...

Cement augmentation is a controversial treatment for painful vertebral compression fractures (VCF). Our research questions for the meta-analysis were: Is there a clinical and statistical difference in pain relief, functional improvement, and quality of life between conservative care and cement augmentation for VCF and, if so, are they maintained at longer time points? We conducted a search of M...

The cement gland is a simple secretory organ that marks the anterior-most dorsal ectoderm in Xenopus embryos. In this study, we examine the timing of cement gland induction and the cell interactions that contribute to cement gland formation. Firstly, we show that the outer ectodermal layer, from which the cement gland arises, becomes specified as cement gland by mid-gastrula. Curiously, at earl...

Ground granulated blast furnace slag is widely used as a mineral admixture to replace partial Portland cement in the concrete industry. As the amount of slag increases, the late-age compressive strength of concrete mixtures increases. However, after an optimum point, any further increase in slag does not improve the late-age compressive strength. This optimum replacement ratio of slag is a cruc...

Introduction: Grit blasted stem-cement interfaces have been advocated as a means of increasing the bond strength of the stem-cement interface in cemented total hip arthroplasty. Recent work has suggested that early cementing of rough stem surfaces can increase the bond strength of the interface when compared to the same interface cemented using very doughy cement [1]. Based on these findings, s...

Pitx-1 is a member of the family of bicoid-related vertebrate homeobox genes; it was originally identified as a tissue-specific transcriptional regulator of the proopiomelacortin gene. Here we report on the embryonic expression of Xpitx-1, which is expressed in the anterior neural ridge and in the cement gland Anlage during late gastrulation/early neurulation. In tadpole stage embryos Xpitx-1 t...

Nowadays percutaneous vertebroplasty is commonly used for vertebral osteoporotic compression fractures. This technique is also useful for other lytic vertebral lesions including hemangioma. Although cement leakage is the most common technical complication, its clinical prevalence is rare and the presentation is always acute. Hereby, we reported a case of vertebral hamangioma in a 14-year-old gi...