1. Wuhan University, China, Honorary Doctor, 2019
2. University of Buenos Aires, Argentina, Honorary Medical Doctor (MD), 2015
3. Ralph F. Sommer Award for significant publications from the AAE, 2005
4. University of Graz, Austria, Honorary Medical Doctor (MD), 2002
5. Louis I. Grossman Award for excellence in research from the American Association for Endodontists (AAE), 1992
6. Pulp Biology Research Award from the International Assoc of Dental Research (IADR), 1991
7. President, Pulp Biology Group IADR/AADR, 1988-1992
8. Editorial Board Member of the International J. of Endodontics, J. of Oral Surgery, Oral Medicine and Oral Biology, J of Endodontics
9. Research Career Dev. Award, NIH/NIDR 1982-1987
10. PhD in Microcirculatory Physiology, Columbia University, 1981
11. MPhil in Circulatory Physiology, Columbia University, 1978
12. Certificate in Endodontics, Columbia University, 1978
13. DDS, Columbia University, 1976
14. BA, Columbia College, New York City, 1972

It has been already 30 years that there has been fundamental changes and advances in surgical endodontics that began with the introduction of the microscope in endodontics. The discovery of the true complexity of the root canal anatomy through the microscope started a whole new way of treatments that, in turn, required a whole new generation of instruments: a series of micro-instruments, ultrasonic tips specifically for root-end preparation, CBCT, Pieozotme and a totally different, highly biocompatible root-end filling material, called MTA and Bioceramic. With these significant and fundamental changes endodontic microsurgery has no resemblance to the traditional techniques, called Apicoectomy which uses a straight bur, no magnification and amalgam retrofilling – and consequently, results in the high failure rate above 50%. Microsurgery may still be considered an aggressive approach, but it has been our experience and judgment, that the microsurgical approach in failed endodontic therapy cases is the more conservative and predictable approach with minimum complications and post-operative pain in many situations. The main purpose of this presentation is to inform the dental community especially endodontists that patients would benefit from this “evolution” in endodontics by keeping their own teeth. Failed non-surgical endodontics is no longer a death sentence for a tooth.