Dr. Terry  Pannkuk DDS, MScD

Root Resorption: Pathogenesis and Management

Friday, March 23, 2012 | Time: 1:00PM - 3:00PM 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.
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  • Webinar Title: Root Resorption: Pathogenesis and Management
  • Presenter: Dr. Terry Pannkuk
  • Date Recorded: March 23rd, 2012
  • Duration: 2 hours
  • CDE Credits: 2 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

See Below

Resources and References

See Below

Supplementary Material

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Dr. Terry Pannkuk has no relevant commercial relationships.

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Dr. Terry  Pannkuk DDS, MScD

Dr. Terry Pannkuk

[javascript protected email address]
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: March 23, 2012
Review Date: TBD
*Expiration Date: March 23, 2015

*Self-instructional activities are reviewed at least once every three years, or more frequently if indicated by new scientific developments, to ensure that content is current and accurate.

CDE Credits

PDL is an ADA CERP recognized provider
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