Carlos A. Spironelli Ramos DDS, MS, PhD graduated in dentistry in 1987 in Brazil. He finished his residency in endodontics in Brazil in 1990. From 1991 to 1993, he attended the master’s program in endodontics, receiving a Master of Science degree. He then began the PhD program in endodontics, completing it in 1997, the same year he published his first book. From 1995 to 2012, He worked as a professor of endodontics at the State University of Londrina, where he coordinated the endodontics sector. During this same time, he published three books and wrote more than a dozen chapters for various endodontics books. Professor Ramos is currently a partial time adjunct professor at Roseman University of Health Sciences in South Jordan, Utah, as well as the R&D Endodontics Clinical Advisor at Ultradent. He was granted three international patents, which have brought different devices to the world marketplace that use these patented technologies. He performs many lectures, hands-on workshops, and conferences worldwide each year, having visited over 40 countries. All this has been accomplished while working part-time exclusively as an endodontic specialist at his private office from 1987 to 2012.