Long-term retrospective study of implants placed after sinus floor augmentation with fresh-frozen homologous block

Aim: The aim of this study was to analyze and follow-up implants placed in the posterior maxillary regions previously grafted with homologous bone.Materials and Methods: Forty-one grafts with homologous bone blocks were performed in maxillary sinuses, and 121 implants were placed in premolar and molar regions approximately Footwear 6 months after t

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The Strategic Approach of Political Tactics In An Organization

This study aims at exploring the relationship between political behavior and job innovation.For this purpose, 220 subjects were randomly selected among 1000 employees of ShahidBeheshtiUniversity.To measure the variables, the standard questionnaire of job innovation of Martin Patchen (1965) and the political behavior questionnaire of A.J.Dobrin (197

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