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A secure implant primary (mechanical) stability is positively associated with a successful implant integration and long-term successful clinical outcome. Therefore, it is essential to assess the initial stability at different time-points to ensure a successful osseointegration. The present study critically reviews the factors that may play a role in achieving a successful initial stability in dental implants. Databases were searched from 1983 up to and including October 2013 using different combinations of various keywords. Bone quality and quantity, implant geometry, and surgical technique adopted may significantly influence primary stability and overall success rate of dental implants.

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The selection process has caused modern durum wheat cultivars to achieve higher yields with different protein quality but also to have low micronutrient amounts. In order to evaluate the suitability of germplasm for the recovery of such nutrient content, macro- and microelements concentrations in twelve ancient Sicilian durum wheat landraces and in three modern cultivars were compared. According to the results, the substantial differences in macro- and micro-element concentrations between the two groups of wheat genotypes suggest ancient Sicilian landraces can effectively represent a suitable genetic material for biofortification plans of micronutrients in modern varieties.

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