Statement of Problem: Digital Subtraction Radiography (DSR) needs reproducible alignment between the x-ray source. the object. and the film for obtaining identical projections of the same anatomic region. Purpose: The aim of this study was to evaluate the effect of bite registrations (placed on individual bite blocks) on the reproducibility of parallel periapical radiographs. https://parisnaturalfoodes.shop/product-category/body-lotion-coconut/