Asaconsequenceofpathologicchangesinthedentalpulptherootcanalsystemcanharbornumerousirri-tants.Egressoftheseirritantsfrominfectedrootcanalsintotheperiradiculartissuescaninitiateforma-tionandperpetuationofperiradicularlesions.Dependingonthenatureandquantit
“ForIseekthetruthbywhichnomanhaseverbeenharmed.”–MarcusAureliusMeditationsVI.1173ADBeforeinitiatingtreatmentonemustfirstassemblecollectiveinformationregardingsignssymptomsandhistory.Thatinformationisthencombinedwithresultsfromtheclinicalexaminationand