The nineteenth and early twentieth-century intellectual claim to European ancestry stems from the ‘Aryan Myth’—the linguistic equating of Iranians as direct descendants Aryans, or Indo-Europeans. historical genesis word ‘Aryan’ was influenced by First Persian Empire (550-330 B.C.E.) in reference an Iranian homeland, nineteenth-century Western linguists’ associations with ancestral Indo-European...

background: caucasian norms are still used in the orthodontic treatment of iranian patients, despite the different ethnic backgrounds of iranians. the aims of this study were to evaluate the cephalometric features of an iranian population and to establish cephalometric norms for iranian living in the central region of iran (isfahan). materials and methods: a total of 238 lateral cephalometric r...

Background: The outbreak of coronavirus disease 2019 (COVID-19) has caused stress and anxiety for various parts society all over the world. This concern are not limited to being affected by COVID-19 because this condition also changes in people’s lifestyles. Objectives: purpose study was design evaluate validity reliability COVID-19-related stressors questionnaire determine contribution each pr...