Effectiveness of Piper longum Extract as Natural Irrigant on Antimicrobial Properties and Smear Layer Removal: A Scanning Electron Microscope Study - Varshasree S; Palati Sinduja; Deepthi Manjesh; Shelly Sharma; Ishpreet K Kalra; Jeyaraman V Karunakaran (The Journal of Contemporary Dental Practice, 2025)