Dr. de Gregorio

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Cesar de Gregorio


-Affiliate Professor. Departments of Endodontics. University of Washington (Seattle, WA. Estados Unidos).

-Professor, Endodontics and Restorative Program. Universidad Rey Juan Carlos (Madrid, España).

-Active member of the Spanish Association of Endodontics (AEDE).

-Active member of the American Association of Endodontists (AAE).

-Active member of the International Association of Dental Traumatology (IADT).

-Graduated in Dentistry. Universidad Europea de Madrid, 2006.

-Post-graduated in Endodontics (with honors). Universidad Europea de Madrid, 2008.

-Award to the Best Research Project from a postgraduate student “Penetration of Sodium Hypochlorite into simulated lateral canals using sonic and ultrasonic activation: An in vitro study”. Annual meeting, AEDE, 2008.

-Award to the Best Clinical Case “Endodontic management of a maxillary canine Dens in Dente Type II (Ohelers Classification)”. Annual meeting, AEDE, 2008.

-Award to the Best Oral Communication: “Efficacy of four irrigations systems in instrumented and uninstrumented areas from the apical third of root canals”. annual meeting, AEDE, 2010.

– Author of many papers published in the most prestigious scientific journals, both nationally and internationally.



Dr. De Gregorio received his dental degree from the European University of Madrid in 2006. In 2008, he completed the Endodontic Program at the European University of Madrid with Honors and received the AEDE Best Research of a Graduate Student Award. He served since from 2009 to 2013 on faculty at the school while maintaining a private practice limited to endodontics. He was in charge of bibliographic reviews of graduate students and served as a Clinical Assistant Professor of the Graduate Program. He received the title of Active Member of the Spanish Association of Endodontics in 2011. As a faculty member, he is active in research, teaching and lecturing both nationally and internationally. He published 9 articles in peer-reviewed journals along these years after finishing his Graduate Program in Endodontics, most of them about root canal disinfection and more specifically about fluid dynamics and apical negative pressure. He became Assistant Professor of the Department of Endodontics at the University of Washington in 2013 where served as a Clinical Assistant Professor of the department of endodontics and as a endodontist at the Center for Pediatric Dentistry where refined his knowledge and techniques on dental traumatology and endodontic considerations in pediatric dentistry. Actually, he serves as a professor of the Graduate program in Endodontics at the Universidad Rey Juan Carlos (Madrid-Spain) as well as performs endodontic treatments in his private practice.



  • 1.- BOOKS:

Disinfection of root canal systems: The treatment of apical periodontitis. Edited by Nestor Cohenca.

-Chapter 9: Positive pressure irrigation. de Gregorio C, Heilborn C, and Cohenca N.

-Chapter 10: Apical Negative Pressure Irrigation (ANP). Cohenca N, de Gregorio C and Paranjpe A.


De Gregorio C, Estevez R, Cisneros R, Heilborn C, Cohenca N. Effect of EDTA, Sonic, and Ultrasonic Activation on the Penetration of Sodium Hypochlorite into Simulated Lateral Canals: An In Vitro Study. J Endod 2009; 35:891–895.

De Gregorio C, Estevez R, Cisneros R, Paranjpe A, Cohenca N. Efficacy of different irrigation and activation systems on the penetration of sodium hypochlorite into simulated lateral canals and up to working length. An in vitro study. J Endod 2010;36:1216–1221.

De Gregorio C, Navarrete N, Estévez R, Aranguren J, de la Torre F, Tejedor B, Cohenca N. y Cisneros R. Penetración real de la irrigación en el interior de sistemas de conductos cerrados. Revista de la Asociación Española de Endodoncia. 06/2011; 29(2):58-94.

- Estevez R, Aranguren J, Escorial A, de Gregorio C. Invasive Cervical Resorption Class III in a Maxillary Central Incisor: Diagnosis and Follow-up by Means of Cone-Beam Computed Tomography. J Endod 2010;36:2012–2014.

- Merino A, Estevez R, de Gregorio C, Cohenca N The effect of different taper preparations on the ability of sonic and passive ultrasonic irrigation to reach the working length in curved Canals. Int Endod J. Int Endod J 2012.

-Paranjpe P, de Gregorio C, Gonzalez AM, Gomez A, Silva Herzog D, Aragon Piña A, Cohenca N. Efficacy of the Self-Adjusting File System on Cleaning and Shaping Oval Canals: A Microbiological
and Microscopic Evaluation. J Endod 2012;38:226–231.

De Gregorio C, Paranjpe A, García Vargas A, Navarrete Marabini N, Estevez R, Oltra Esplugues E, Cohenca N. Efficacy of irrigation systems on penetration of sodium hypochlorite to working length and to simulated uninstrumented areas in oval shaped root Canals. Int Endod J 2012;45:475–481.

De Gregorio C, Algar J, Navarrete N, Estevez R, Cisneros R. Instrumentación Tridimensional de sistemas de conductos mediante el sistema self adjusting file (SAF). A proposito de un caso. Revista de la Asociación Española de Endodoncia. 01/2013; 31(1):26-32.

De Gregorio C,  Arias A, Navarrete N, del Río V, Oltra E, Cohenca N. Effect of apical size and taper on volume of irrigant delivered at working length with apical negative pressure at different root curvatures. J Endod, 2013.39;119-124.

De Gregorio C, Arias A, Navarrete N, Cisneros R, Cohenca N. Differences on disinfection protocols between general practitioners and endodontists on root canal treatments: A web-based survey. JADA 2014. Journal of the  American Dental Association 2014.

 The content of this website cannot be reproduced. All the content from De Gregorio Endodoncia©  has been registered. September, 1st, 2014.

De Gregorio Endodoncia. Endodoncia en exclusiva. C/ Jorge Juan 66, 3º E. 28009 Madrid Tel: 914 357 169/688 98 16 18 e-mail: info@degregorioendodoncia.com