The purpose of this research was to study the marginal adaptation of eight calcium silicate-based materials when used to seal large furcal perforations, compared with one resin-modified glass-ionomer cement by scanning electron microscopy (SEM). Сonclusion:All tested calcium silicate-based materials showed good marginal adaptation and are suitable for large furcal perforation repair.

The goal of language programs is to utilize language for effective communication. Due to the needs, interests, and motivations of language learners, they may show individual differences in their lan- guage learning. Materials used in language programs can be instructional, experiential, elucidative, or exploratory in that they can inform learners about the language, provide experience of the la...

OBJECTIVE This study used dye leakage assay and scanning electron microscopy to evaluate, respectively, the sealing ability and marginal adaptation of three root-end filling materials used as apical plugs, as well as the possible correlation between these properties. MATERIAL AND METHODS Ninety-eight single-rooted human teeth were prepared to simulate an open apex. The teeth were allocated to...

abstract background: stroke is a stressful event with several functional, physical, psychological, social, and economic problems that affect individuals’ different living balances. with coping strategies, patients try to control these problems and return to their natural life. the aim of this study is to investigate the effect of a care plan based on roy adaptation model biological dimension on...

E-learning offers students access to tools and course materials over the internet. By distributing tools and materials in this fashion, students isolated from the university environment can still work toward University degrees in most fields offered. Courses that include a laboratory component have traditionally required students to be on-site. This is primarily due to the need for laboratory r...

We investigate the Green function of two-dimensional dense random packings of grains in order to discriminate between the different theories of stress transmission in granular materials. Our computer simulations allow for a detailed quantitative investigation of the dynamics which is difficult to obtain experimentally. We show that both hyperbolic and parabolic models of stress transmission fai...