Team

Dr. David E. Witherspoon

Plano Endodontist

Born in Australia. Graduated from University of Queensland with a Bachelor of Dental Sciences and a Bachelor of Economics. Practiced General Dentistry for 5 years in both in Australia and the United Kingdom. Graduate from Baylor College of Dentistry in 1996-97 with a Certificate of Advanced Specialty Training in Endodontics and Master of Science Oral Biology. He was on the full time graduate faculty and assistance director of the graduate endodontic program at Baylor from 1996-2001. Currently is in fulltime endodontic practice in Plano Texas and adjunct faculty at Texas A&M Baylor College of Dentistry. In 2013 he completed a Master in Fine Arts at University of Texas at Dallas.

  • President’s Award American Association of Endodontists (AAE) 2015
    • Bestowed only 10 times in AAE history
  • Diplomat of the American Board of Endodontics 2003-Present
  • Lifetime member of the College of Diplomats American Board of Endodontics
  • Fellow of the International College of Dentists 2013- present
  • General Chair for the American Association of Endodontists annual meeting 2015Program
  • Chair for the American Association of Endodontists annual meeting 2014
  • Program Vice Chair for the American Association of Endodontists annual meeting 2013
  • Workshop Chair for the American Association of Endodontists annual meeting 2007-2011
  • Chair for Table clinics American Association of Endodontists annual meeting from 2001-2003
  • American Association of Endodontists annual session planning committee 2001-2003, 2007-2016
  • Research and Scientific Affairs Committee American Association of Endodontists 2000-2003
  • Edward M. Osetek Educator Award. American Association of Endodontists 1999
  • Omicron Kappa Upsilon Honor Dental Society – Faculty Member – elected 2000
  • Co-author of the chapter on the Diagnosis in The Guidebook to Molar Endodontics 2016
  • Co-author of the chapter on Management of Teeth with Necrotic Pulps and Open Apices in
  • Mineral Trioxide Aggregate: Properties and Clinical Applications 2014
  • Co-author of the surgery chapter in the 9 th and 10 th ed. of Pathways of the Pulp
  • Co-author of the obturation chapter in the 7 th and 8 th ed. of Pathways of the Pulp
  • D-Magazine Best Dentist in Dallas 2003,2004,2005,2006,2007,2008,2009,2010,2011,2012,2013,2014, 2015 and 2016
  • Texas Super Dentists by Texas Monthly in 2005,2006,2007,2008,2009,2010,2011,2012,2013,2014, 2015 and 2016
  • Published over 30 articles in peer reviewed journals
  • Lectured world wide
  • Journal / Reviewer
  • Bestowed only 10 times in AAE history
  • Quintessence International
  • International Endodontic Journal
  • Journal of Endodontics
  • JADA
  • Past-President of the Southwest Society of Endodontics,
  • Past-President of the DFW Metroplex Endodontic Society.
  • Avid swimmer, usually swimming in the Swim Across America event each year

Dr. Joel C. Small

Plano Endodontist

Face To Face BookDr. Joel C. Small received his DDS (Doctor of Dental Surgery) in 1976 from the University of Texas Dental Branch, Houston, Texas. He then continued with a two year residency in endodontics while serving as an assistant clinical professor. He is a fellow of the International College of Dentists.

He received his Masters in Business Administration (MBA) with an emphasis in healthcare management from Texas Tech University. He also received his certification as an executive and professional coaching through the Jindal School of Management at the University of Texas at Dallas. He is the author of Face to Face: A Leadership Guide for Healthcare Professionals and Entrepreneurs.

  • Fellow of the International College of Dentists
  • President of the Dallas County Dental Society Foundation
  • Trustee of the American Association of Endodontists Research and Education Foundation
  • Member of the Dallas County Dental Society Board of Directors
  • Chairperson for the AAE Research and Education Foundation Symposium
  • Past president of the Southwest Society of Endodontists
  • Published over twenty articles in peer reviewed journals and dental trade journals
  • Lectures extensively throughout the US and abroad
  • Recipient of the International College of Dentists award: outstanding clinical article in the Texas Dental Journal
  • University of Texas Dental Branch Alumnus of the year Finalist
  • D-Magazine Best Dentist in Dallas 2003,2004,2005,2006,2007,2008,2009,2010,2011,2012,2013,2014,2015 and 2016
  • Texas Super Dentists by Texas Monthly in 2005,2006,2007,2008,2009,2010,2011,2012,2013,2014,2015, and 2016

Dr. John D. Regan

Plano Endodontist

Born in Dublin, Ireland. Graduated from Trinity College Dublin and practiced General Dentistry for 8 years in London, England. Attended the Institute of Dental Surgery, Eastman Dental Hospital in 1998-1999. Was awarded a Masters in Restorative Dentistry from the University of London. Continued to work in General Dental Practice and was a Faculty member at The Institute of Dental Surgery, Eastman Dental Hospital until he moved to Dallas in 1995. Graduated from Baylor College of Dentistry in 1998 with a Certificate of Advanced Specialty Training in Endodontics and Master of Science in Oral Biology. He was on the fulltime graduate faculty and Interim director of the graduate endodontic program at Baylor from 2001-2005. Currently is in full time endodontic practice in Plano Texas and adjunct faculty at Texas A&M Baylor College of Dentistry.

  • Diplomat of the American Board of Endodontics 2003-Present
  • Lifetime member of the College of Diplomats American Board of Endodontics
  • Fellow of the International College of Dentists 2013- present
  • Workshop Chair Designate for the American Association of Endodontists annual meeting 2016-2018
  • Co-author of the chapter on the Diagnosis in The Guidebook to Molar Endodontics 2016
  • Co-author of the chapter on Surgical Endodontics in Harty’s Endodontic Textbooks in 2003 and 2010
  • Co-author of the chapter on Canal Preparation in in Harty’s Endodontic Textbooks in 2003 and 2010
  • Co-author of the Surgery chapter in Mosbys Endodontic Textbook (Stock, Walker, Gulabivala) 2004
  • Author of the Root canal system obturation chapter in Mosbys Endodontic Textbook (Stock, Walker, Gulabivala) 2004
  • D-Magazine Best Dentist in Dallas 2005,2006,2007,2008,2009,2010,2011, 2012,2013,2014,2015, and 2016
  • Texas Super Dentists by Texas Monthly in 2005,2006,2007,2008,2009,2010,2011,2012,2013,2014, 2015, and 2016
  • Published approximsately 25 articles in peer reviewed journals
  • Lectured in the UK, France, Ireland, Mexico and the US
  • He reviews articles for several Dental journals including:
    • International Endodontic Journal
    • Journal of Endodontics
    • Journal of the Irish Dental Association
    • Endodontic Practice
    • Past-President of the DFW Metroplex Endodontic Society.
  • He is a member of The American Dental Association, The Texas Dental Association, The Dallas County Dental Society, The American Association of Endodontics, The Dallas Forth Worth Metroplex Endodontic Society
  • In his free time Dr Regan likes to cook, read, exercise and he is an amateur photographer.
  • He is married to Deborah who in the Director of Undergraduate Periodontics at Baylor College of Dentistry. They have two sons Conor 23 and Killian 21.
  • The family dog is Luci who is an eight year old Yellow Labrador.

Dr. Esther C. Tam

Plano Endodontist

Dr. Esther Tam received a Bachelor of Science in Cell Biology and Genetics in 1999 from the University of British Columbia. In 2003, Dr. Tam received her DMD at the Boston University Henry M. Goldman School of Dentistry, from which she also earned a Master of Science in Dentistry and Certificate of Advanced Graduate Study in Endodontics in 2006. Dr. Tam previously practiced in Boston and Vancouver, Canada. She was the Undergraduate Director of Endodontics at the University of British Columbia Faculty of Dentistry from 2010-2013. She is currently a Clinical Assistant Professor at the Texas A&M University Baylor College of Dentistry and teaches part-time in the Department of Endodontics. She is a published author in the Journal of Endodontics and active in giving lectures locally and abroad.

Dr. Tam is a member of the American Association of Endodontists, American Dental Association, Texas Dental Association, Dallas County Dental Society, and Greater DFW Endodontic Society. She is also a Fellow of the Royal College of Dentists of Canada.

Dr. Tam is married to her husband, Kenny, and they have a son named Zachary. She enjoys yoga, running, cooking, traveling, and singing.

  • Bachelor of Science in Cell Biology and Genetics from the University of British Columbia (1999)
  • DMD (Doctor of Medical Dentistry) at the Boston University Henry M. Goldman School of Dentistry (2003)
  • Undergraduate Director of Endodontics at the University of British Columbia Faculty of Dentistry (2010-2013)
  • Clinical Assistant Professor at the Texas A&M University Baylor College of Dentistry (Current)
  • Part-time instructor in the Department of Endodontics at Texas A&M College of Dentistry (Current)
  • Published author in the Journal of Endodontics