As the crown structure of tooth has crumbled mostly due to the carious process, it is a case, which has gone into the stage of Acute and Chronic irreversible pulpitis but is there any documentation as to how long can an asymptomatic tooth piece be given a diagnosis of chronic irreversible pulpitis and how can it be labelled as a case of pulpal necrosis clinically (as per the clinical classification of pulpal diseases by Cohen)?