Webinars > Resorption: Etiology, Pathogenesis, and Treatment

Resorption: Etiology, Pathogenesis, and Treatment

Saturday, April 26, 2014 | Time: 12:00 PM - 2:00 PM PDT

CDE Credits: 2.00 Teaching Methods: Lecture; Live Online or Self-Instructional Video Length: 2 hours

PDL is an ADA CERP recognized provider. PDL designates this activity for 2.00 hours continuing dental education credit.

Webinar Title: Resorption: Etiology, Pathogenesis, and Treatment

Presenters: Dr. Rick Schwartz & Dr. Terry Pannkuk

Date Recorded: April 26, 2014

Duration: 2 hours

CDE Credits: 2.00 CDE credits will be issued by Pure Dental Learning



Root resorption has been historically regarded as an exotic, rare presentation in dental practice. It is not, and occurs quite frequently. Four main theories on pathogenesis have been proposed. Dr. Pannkuk will discuss these theories and the confusion associated with different resorption descriptors: internal, external, inflammatory, replacement, and extracanal invasive types. Case histories with long term recalls monitored up to 18 years will be shown. Management strategies, CBCT mapping and option assessment will be highlighted with a special emphasis on the differences between root repair materials and research. Extensive documentation with clinical microphotos, CT imagining, and conventional radiography will be demonstrated.

Course Outline

I. Root Resorption assumptions
II. Four main theories on pathogenesis

Resorption descriptors:

  • Internal
  • External
  • Inflammatory
  • Replacement
  • Extracanal

III. Case Histories
IV. Management Strategies


At the end of this presentation the participant will have a clear understanding of the current science and clinical opportunities available to successfully manage and treat different types of root resorption.

Course Evaluation

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Resources and References

See Below

Supplementary Material

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Dr. Rick Schwartz, DDS has no relevant commercial relationships. Dr. Terry Pannkuk, DDS, MScD has no relevant commercial relationships.

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Dr. Rick Schwartz, DDS

Dr. Rick Schwartz, DDS


1130 E. Sonterra Blvd, Suite 140
San Antonio, TX 78258, United States


Dr. Rick Schwartz was a restorative dentist for 19 years prior to entering post-graduate training in endodontics. He attended a 2-year general dentistry residency, and then did a combination of private practice, teaching and dental materials research before entering endodontic training in 1996. He has authored over 100 articles and abstracts and was a cover author on 3 editions of “Fundamentals of Operative Dentistry” by Quintessence Publishing Co. He is first author of the book “Best Practices in Endodontics”, also from Quintessence., and is a cover author of “A CBCT Primer for Endodontists “, which will be available in 2017. For the past 19 years he has been in full time private practice limited to endodontics in San Antonio, TX. He has lectured extensively in U.S. and 14 other countries.

Dr. Terry Pannkuk, DDS, MScD

Dr. Terry Pannkuk, DDS, MScD


9 E Pedregosa Street, Suite B
Santa Barbara, CA 93101, United States


Dr. Terry Pannkuk, a native of California, graduated from University of California at Los Angeles with a degree in Biology, Georgetown Dental School with a D.D.S., and Boston University with an M.Sc.D. in Endodontics. He is a Diplomate of the American Board of Endodontics, former editor and publisher of The Endodontic Report, former president of the Boston University Endodontic Alumni Association, current reviewer for the Journal of Endodontics (official journal of the American Association of Endodontists), Past President of the Academy of Microscope Enhanced Dentistry, President and Founder of the Schilder Institute for the Advancement of Endodontics, Editor and Publisher of PDL (Pure Dental Learning), Volunteer Clinical Professor at the University of California at San Francisco, and international lecturer-author of topics relating to clinical endodontics. He lives and practices in Santa Barbara, California.

Resources and References

1.Al-Sabek, Shostad, S., Kirkwood, K., Preferential attachment of the human gingival fibroblasts to the resin Ionomer Geristore. 31: 205 J Endod, 2005
2.Dragoo, M., Resin-ionomer and hybrid-ionomer cements: Part I. comparison of three materials for the treatment of subgingival root lesions, 16:595 The International Journal of Periodontics and Restorative Dentistry 1996
3.Dragoo, M., Resin-ionomer and hybrid-ionomer cements: part II. Human clinical and histologic wound healing responses in specific periodontal lesions, 17:75 The International Journal of Periodonticsand Restorative Dentistry 1996
4.Heithersay, G. Invasive cervical resorption 7:73, Endodontic Topics 2004


Original Release Date: April 26, 2014
Review Date: TBD
*Expiration Date: April 26, 2017

CDE Credits

PDL is an ADA CERP recognized provider

ADA CERP is a service of the American Dental Association to assist dental professionals in identifying quality providers of continuing dental education. ADA CERP does not approve or endorse individual courses or instructors, nor does it imply acceptance of credit hours by boards of dentistry.

Concerns or complaints about a CDE provider may be directed to the provider or to ADA CERP at cerp@ada.org

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