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Roots C.E. Magazine - 3/2012

John J. Stropko, DDS

, Release date: Monday, October 01, 2012, Expiration date: Thursday, October 01, 2015

CE Article


ARTICLE FEE: $ 20.00

Invasive cervical resorption (ICR): A description, diagnosis and discussion of optional management - a review of four long-term cases

Learning Objectives:

Upon completion of this course, the clinician will be able to:
  • Understand the etiology of ICR, and be able to make a more definitive diagnosis.
  • Classify and locate the lesion with more accuracy.
  • Place the lesion into the proper Heithersay classification.
  • Create a more efficient clinical management plan.
  • Treat ICR cases with more confidence, fewer “surprises”, and less stress.
  • Make a better decision on whether to treat, or not to treat.
  • Be aware of current technology available for more predictable results.
The C.E. quiz will be available online, upon registration for this course.
For additional reading on the topic presented by John J. Stropko, DDS, please refer to:
  • Heithersay G. Clinical, radiologic and histopathologic features of invasive cervical   resorption. Quintessence Int 1999;30:27-37.
  • Heithersay G. Invasive cervical resorption: An analysis of potential predisposing factors. Quintessence Int 1999;30:83-95.
  • Heithersay G. Invasive cervical resorption: Treatment of invasive cervical resorption: An analysis of results using topical application of trichloroacetic acid, curettage, and restoration. Quintessence Int 1999;30:96-110.
  • Heithersay G. Invasive cervical resorption. Endod Topics 2004;7:73-92.
  • Lindskog S, Heithersay GC, Pierce AM. Dental Resorptions. Scandinavian Yearbook of Dentistry. Blackwell Munksgaard, 2006.
  • Heithersay GS. Management of tooth resorption. Aust Dent J Supp, 2007;52:1Suppl):S105-S121.
  • Patel S, Pitt Ford T. Is the resorption external or internal? Dental Update 2007;34:218-29.
  • Schwartz RS, Robbins JW, Rindler E. Management of Invasive Cervical Resorption: Observations from Three Private Practices and a Report of Three Cases. J Endod 2010;36:1721-1730.
  • Neuvald L, Consolaro A. Cementoenamel junction: microscopic analysis and external cervical resorption. J Endod 2000;26:503-8.
  • Bergmans I, Van Cleynenbreugel J, Verbeken E, Wevers M, Van Meerbe ek B, Lambrechts P. Cervical root resorption in vital teeth: X-ray microfocus –tomographical and histopathological study. J Clin Periodontal 2002;29:580-5
  • von Arx T, Schawalder P, Ackermann M, Bosshardt D. Human and feline Invasive cervical resorptions: the missing link? --- Presentation of 4 cases. J Endod 2009;35:904-13.
  • Miles D, McClammy T. Cone beam imaging for endodontists. Pathways of the Pulp, Tenth Edition, St. Louis, Mosby Co 2011:1007-18.
  • Frank A, Torabinijad M. Diagnosis and treatment of extracanal invasive resorption. J Endod 1998;7:500-4.
  • Torabinejad M, Watson TF, Pitt Ford TR. Sealing ability of a mineral trioxide aggregate  when used as a root end filling material. J Endod 1993;19:591–5.
  • Jeansonne B, Boggs W, Lemon R. Ferric sulfate hemostasis: Effect on osseous wound healing. II. With curettage and irrigation* J of Endod 1993;19:174-6
The author has no potential conflicts relevant to the topic area and did not receive any funding or commercial support for authoring the article.

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John J. Stropko, DDS


Dr. John J. Stropko received his DDS from Indiana University in 1964 and practised restorative dentistry for 24 years. In 1989, he received a certificate for endodontics from Boston University. He recently retired from the private practice of endodontics in Scottsdale in Arizona, USA. Dr. Stropko is an internationally recognised authority on micro-endodontics. He has been a visiting clinical instructor at the Pacific Endodontic Research Foundation (PERF), an Adjunct Assistant Professor at Boston University, an Assistant Professor of graduate Clinical Endodontics at Loma Linda University, and an instructor of Microsurgery in the Endodontic Faculty at the Scottsdale Center for Dentistry.

His research on in vivo root canal morphology has been published in the Journal of Endodontics. He is the inventor of the Stropko Irrigator, has published in several journals and textbooks, and is an internationally known speaker. Dr. Stropko has performed numerous live micro-endodontic and micro-surgical demonstrations. He is the co-founder of Clinical Endodontic Seminars. He can be contacted at

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