1. A quality assurance phantom for an intraoral digital dental imaging that maintains clinical source-to-object and object-to-sensor projection geometry, the phantom comprising: a horizontal platform having a top surface and a bottom surface; a plurality of spacing members extending upwardly from said top surface and defining an image acquisition area, each spacing member of said plurality having top surface; at least two clamping members positioned below said platform, said at least two clamping members moveable toward and away from the image acquisition area; at least one attenuating body; a dynamic range portion having a plurality of steps, each step of said plurality of steps having a different thickness from the other steps; a contrast detail portion having a uniform thickness and a plurality of wells formed therein, said contrast detail portion being located below said at least one attenuating body; a spatial resolution portion having a plurality of line sets, each line set of said plurality of line sets having different line spacing from the other line sets, said spatial resolution portion being located below said at least one attenuating body.