objective: previous studies have demonstrated that dental stone casts can be disinfected by replacing 10v% of required water with 5.25% sodium hypochlorite solution. this comparative study evaluated physical properties of dental stone models produced by replacing distilled water with sodium hypochlorite.   methods: in this in-vitro experimental study, a total of 45 dental stone models were prod...

three subheadings including treatment, prevention and control and diagnosis methods got the most priorities, respectively. although about half of the priorities are related to two subheadings including treatment and diagnosis methods, research priorities of prevention and control methods (22% of all priorities) indicate the importance of prevention for clinicians who gave scores to the titles. ...

background and aims. temperament has been suggested to be a predictive factor for the child’s reaction to dental treatment especially in young ages. the aim of this study was to assess the relationship between temperament and child behavior in relation to age in the dental setting. materials and methods. in this descriptive-analytical study, 190 children, aged 1 to 7 years, who visited dentist ...

The present investigation sought to comparatively explore the effect of length of residence (LOR) as well as EFL instruction on the pragmatic competence of Iranian learners. The participants were 45 EFL learners in Iran and 45 learners in Canada selected based on snowball sampling and each group was divided into three sub-groups based on the years of learning English in an EFL or a natural sett...

this study focuses on the relationship between lower-intermediate level efl learners’ metacognitive awareness and accuracy in self-assessment of a speaking test. we tried to raise the learners’ metacognitive awareness through practice in goal-setting and planning. to do so, 103 lower-intermediate level students took a pretest of speaking, completed a metacognitive awareness questionnaire, and h...

i ntroduction: the aim of the present study was to evaluate whether adding 2% chlorhexidine (chx) and 2.6% sodium hypochlorite (naocl) to calcium-enriched mixture (cem) cement would affect its setting time (st), or not. methods and materials: in this study, the setting time of cem cement was evaluated in three groups ( n =9) as follows: group 1; cem cement, group 2; cem cement+2% chx and group ...

the process of determining the minimum pass level to separate the competent students from those who do not perform well enough is called standard setting. a large number of methods are widely used to set cut-scores for both written and clinical examinations. there are some challenging issues pertaining to any standard setting procedure. ignoring these concerns would result in a large dispute re...

background: intrapartam complications such as foetal malpresentation, placental abruption, dysfunctional labour, and postpartum haemorrhage are associated with grandmultiparity. in developing countries and many parts of africa and sub-saharan africa, there is limited access to medical care. there is a need in these areas to identify women whose pregnancies are at risk of complication and it is ...

Our image of the working scientist remains inherently romantic (1). We envision an individual, working alone, pursuing knowledge in an area solely for its intrinsic interest. As attractive as the image may be, it has little to do with the realities of current work in the sciences (2, 3, 4). Scientists work in a distinctly social setting, conducting their work in both collaboration and competiti...

This paper discusses themes associated with the enterprise of educational research, particularly as it applies to notions of ontology and epistemology in ‘quantitative’ and ‘qualitative’ methodologies. It begins by identifying the ‘space’ that educational research occupies in the contemporary social setting and indicates the growing complexities of the ‘real world’ which researchers contemplate...