A dental blank positioning device (2) for positioning a dental blank (1) within a manufacturing apparatus, the device capable of securing to a dental blank (1) around its circumferential perimeter and comprising an interior side corresponding to the dental blank (1) and an exterior side generally corresponding to a dental blank holder (4) , an index element (3) extending outwardly of the exterior side, whereby a portion of the index element (*) may rest against an index chamber of a blank holder (4).