Deepcariouslesionsareadvancedstagesoftoothdecaythatextenddeepintothedentinlayerofthetooth,approachingorpotentiallyreachingthepulp.Theselesionsresultfromprolongedbacterialactivityandacidproduction,whichprogressivelydemineralizeanddestroythetoothstructure.Symptomsmayincludetoothsensitivity,pain,orvisiblecavities.Leftuntreated,deepcariouslesionscanleadtopulpinflammation(pulpitis),infection,orabscessformation.Treatmentoptionsrangefromconservativeapproacheslikeindirectpulpcappingtomoreinvasiveproceduressuchasrootcanaltherapyorextraction,dependingontheseverityandpulpinvolvement.Earlydiagnosisandinterventionarecrucialtopreservetoothvitalityandpreventcomplications.
