Shaping for Cleaning: Rethinking Irrigation, Technology, and the Future of Endodontics – Ep. 84
In this episode, we sit down with Dr. Mustafa Gündoğar, researcher, educator, and globally recognized voice in endodontics, to explore the evolving science behind how we truly clean root canal systems. From his journey into endodontics driven by microbiology and patient care, to his extensive research on irrigation activation systems, Dr. Gündoğar challenges long-held assumptions and reframes the conversation: are we shaping to clean, or cleaning to shape? Together, we unpack the critical role of biofilm, the limitations of instrumentation, and why irrigation remains the cornerstone of predictable outcomes.
The discussion dives into advanced technologies like lasers and multisonic irrigation, examining their real-world impact, limitations in clinical data, and the practical considerations of adoption across global practices. Dr. Gündoğar offers a candid perspective on what truly drives innovation, including effectiveness, workflow integration, and economic feasibility, while emphasizing the need for stronger long-term clinical evidence.
Episode Resources
- Shovelton study (classic microbiology distribution study) Shovelton, D. S. (1964). The presence and distribution of microorganisms within non-vital teeth. British Dental Journal, 117, 101–107.
- Peters et al. (canal wall contact / instrumentation studies) Peters, O. A., Schönenberger, K., & Laib, A. (2001). Effects of four Ni-Ti preparation techniques on root canal geometry assessed by micro computed tomography. International Endodontic Journal, 34(3), 221–230.
- Niazi et al. (inflammation / biomarkers and apical periodontitis) Niazi, S. A., et al. (2016). Association between endodontic infections and systemic inflammation. International Endodontic Journal, 49(7), 689–702.
- Wu et al. (long-term healing / apical periodontitis outcomes) Wu, M. K., et al. (2011). Long-term outcome of root canal treatment: A follow-up study over 10 years. Journal of Endodontics, 37(3), 332–337.
- Gündoğar, M., Özdemir, O., Gündoğar, Ö., Bektaş, S., Demir, F. N., & Bolat, N. (2025). Multisonic ultracleaning and laser-activated irrigation effect compared to passive ultrasonic activation for debridement in minimally invasive instrumentation of necrotic oval root canals: An ex vivo histological analysis. Journal of Clinical Medicine, 14(8), 2597. https://doi.org/10.3390/jcm14082597
Disclaimer
Episodes of Endo Voices may include opinion, speculation and other statements not verifiable in the scientific method and do not necessarily reflect the views of AAE or the sponsor(s). Listeners should use their best judgment in evaluating the merits of any content.