In this episode:1. What is Twin Dent needle2. Activation VS Agitation3, Advantages & disadvantages of Piezo / Ultrasonic system.4. PATS system.5. Why are surfactants vital & when ? 6. Does heating HYPO help ? 7. Which activation technique helps us achieve maximum penetration of dentinal tubules & how deep are microbes actually present inside the tubules. 8.  What is passive WAIT ? 9. Lasers and endodontics.