practiced as a general dentist in Nova Scotia for 10 years before earning his Certificate of Specialty in Endodontics. A diplomate of the American Board of Endodontics, he is a past president of the American Association of Endodontists. Roda practices in Scottsdale, Arizona, where he serves as an endodontic consultant to the Arizona State Board of Dental Examiners, a visiting lecturer at the Arizona School of Dentistry and Oral Health, and as associate editor of the Journal of Endodontics. He can be reached at azendo@aol.com.