Terri S.I. Tilliss ,Ms. Tilliss is an Associate Professor in the Department of Dental Hygiene at the School of Dentistry, University of Colorado. Correspondence related to this article can be sent to her by mail at the following address: University of Colorado Health Science Center School of dentistry Dental Hygiene Department 4200 East Ninth Avenue C284 Denver, CO 80262 e-mail: terri. tilliss@unhsc.edu,

John McDowell ,Dr. McDowell is an Associate Professor in the Department of Diagnostic and Biological Sciences at the University of Colorado Health Sciences Center.,

Steven Schwartz ,Dr. Steven Schwartz has maintained a private pediatric dentistry practice for over 25 years. He is a Diplomate of the American Board of Pediatric Dentistry and the author of numerous clinical and practice management articles. Dr. Schwartz received his training in personal and business coaching from the Coaches Certification Institute in New York and is a member of the International Federation of Coaches. As president of WOW! Enterprises, his seminars and coaching have inspired countless people to achieve their goals, be the best in their chosen profession, and fulfill their wildest dreams. An excerpt from his forthcoming book, ‘It's your Choice; Creating a Blueprint for Total Success’ can be found at www.wowseminars.com. He can be contacted at 800-618-8819 or e-mailed at wowsmnrs@aol.com,

Murat Maden ,Dr. Maden is a graduate student in Endodontics and serves as a research assistant in Department of Operative Dentistry and Endodontics at the Faculty of Dentistry at the University of Gazi in Ankara, Turkey. He is a member of Turkish Endodontic Society and the European Endodontic Society.,

Güliz Görgül ,Dr. Görgül is a Professor in department of Operative Dentistry and Endodontics at the Faculty of Dentistry at the University of Gazi in Ankara, Turkey where she received her graduate training in Endodontics. She is a member of Turkish Endodontic Society and the European Endodontic Society. Dr. Görgül is the corresponding author for this paper. email: guliz@gazi.edu.tr,

A. Cemal Tinaz ,Dr. Tinaz is an assistant professor in department of Operative Dentistry and Endodontics at the Faculty of Dentistry at the University of Gazi in Ankara, Turkey where he received his graduate training in Endodontics. He is a member of Turkish Endodontic Society and the European Endodontic Society.,

Hikmet Umar ,Dr. Umar completed a fellowship in dental informatics tract of the Pittsburgh Medical Informatics Training Program at the Center for Biomedical Informatics, University of Pittsburgh, and at the Department of Dental Informatics, School of Dentistry, Temple University., The basis for this article was his Masters thesis entitled, “Decision-making under uncertainty in clinical dentistry: a probabilistic approach to a Dental Clinical Advisory System” through the Department of Information Sciences and Telecommunications, School of Information Sciences, University of Pittsburgh. e-mail: Hikmet@Umar.de,

David W. Heid ,Dr. Heid is the former Chief of Dental Services at the Seattle Veterans Medical Center in Seattle, WA and now serves as a Clinical Professor in the Department of Restorative Dentistry at the University of Washington School of Dentistry. He has also held the position of an Associate Professor in the Department Restorative Dentistry at the Medical College of Georgia. email: dheid@cablespeed.com,

Joseph Chasteen ,Dr. Chasteen is an Associate Professor in the Department of Oral Medicine at the University of Washington School of Dentistry and serves as the Director of Information Technology and Research.,

Arden W. Forrey ,Dr. Forrey serves as a Research Associate in the Department of Restorative Dentistry, University of Washington School of Dentistry. He has served as the Veteran's Administration Decentralized Hospital Computer Project Site Manager at the Seattle. VA Medical Center; a research Fellow in Fleet Medical Informatics, US Navy Medical research and development Command, and in the Department of Pediatrics at Georgetown University.,