background: the aim of this in vitro study was to evaluate the effect of shape, diameter and length of implants on their primary stability based on resonance frequency analysis. materials and methods: replace select tapered and branemark mk iii implants were selected. each of these two selected groups was divided into nine subgroups based on the implant length (il) (short, medium and long) and ...

background over the last decade there has been an increase in healthcare expenditures while at the same time the inequity in distribution of resources has grown. these two issues have urged the researchers to review the determinants of healthcare expenditures. in this study, we surveyed the determinants of health expenditures in economic cooperation organization (eco) countries.   methods we us...

Chondral lesions are difficult-to-treat entities that often affect young and active people. Moreover, cartilage has limited intrinsic healing potential. The purpose of this systematic literature review was to analyse whether the single-step scaffold-based cartilage repair in combination with microfracturing (MFx) is more effective and safe in comparison to MFx alone. From the three identified s...

a long-term study was conducted between 1985 and 2003 on rehabilitation trials at sishen ironore mine, south africa, to identify grass species that would survive in the artificial growth medium appliedto the sites, and to determine the most suitable medium for sustainable vegetation growth. vegetationestablishment was tested at slopes of 18° and 34° and with five different cover materials. afte...

BACKGROUND Poorly ventilated combustion stoves and pollutants emitted from combustion stoves increase the risk of acute lower respiratory illnesses (ALRI) in children living in developing countries but few studies have examined these issues in developed countries. Our objective is to investigate behaviors related to gas stove use, namely using them for heat and without ventilation, on the odds ...

We assessed 100 patients with a primary total hip replacement using the Harris hip score and the Nottingham Health Profile at one, three and five years after operation. They were derived from two prospective randomised series of cemented and uncemented replacements. Both scoring systems correlated highly and were each heavily influenced by the system of functional classification defined by Char...