Dr. Clifford J Ruddle DDS, FACD, FICDDr. Terry  Pannkuk DDS, MScD

Severe External Resorption Treatment: Drs. Ruddle and Pannkuk

Saturday, December 4, 2021 | Time: 10:00AM - 12:00PM PST
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: Severe External Resorption Treatment: Drs. Ruddle and Pannkuk
  • Presenters: Dr. Clifford Ruddle and Dr. Terry Pannkuk
  • Date Recorded: December 4th, 2021
  • Duration: 2 hours
  • CDE Credits: 2 CDE credits will be issued by Pure Dental Learning



Drs. Pannkuk and Ruddle will give a live narration of a recorded ECIR (extra-canal invasive resorption) case performed in two steps. An introduction highlighting the resorption disease process and management will be given prior to the detailed narration of the procedure. This will be a wonderful opportunity for online and live participants to ask real-time questions of both Drs. Ruddle and Pannkuk about the details of the procedure and the specific clinical events that occurred. A unique feature of PDL events is the uncensored expectation that participants will ask critical questions that require thoughtful and honest answers by the presenters. This extremely challenging case will give participants a unique perspective as to what is possible with the latest materials and techniques.

Course Outline

  1. Preplanning session: details of the patient discussed including medical history, dental history, clinical findings, diagnosis, prognosis, and treatment plan The CBCT scan will be shown with dynamic slicing considering resorption mapping, maxillary sinus proximity, and planned defect management. Imaging of the case will be highlighted and discussed.

  2. Extra-Canal Invasive Resorption: The principles and goals of treatment

  3. Live Narration with Drs. Ruddle and Pannkuk

  4. Discussion and review of the treated case and plans for restoration and follow-up


The participant will learn:

  1. Case selection, planning, and how to map the geometry of a resorption defect with the aid of CBCT.

  2. Maxillary sinus considerations

  3. Choice of appropriate repair materials

  4. How to control hemostasis

  5. Manage the root canal system through an extensive resorption defect

  6. How to plan the follow-up restorative procedures and future perio management

Course Evaluation

See Below

Resources and References

See Below

Supplementary Material

If provided, available when logged in.


Dr. Clifford Ruddle has no relevant commercial relationships.

Dr. Terry Pannkuk has no relevant commercial relationships.

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Dr. Clifford J Ruddle DDS, FACD, FICD

Dr. Clifford Ruddle

[javascript protected email address]
122 S. Patterson Ave, Ste. 206
Santa Barbara, CA 93111


Internationally recognized as a leading expert in all aspects of clinical endodontics, Dr. Ruddle is acclaimed for providing superb endodontic education through his teachings, clinical articles, training manuals and multimedia products. He is the founder and director of Advanced EndodonticsĀ®, an international educational source in Santa Barbara, California. Dr. Ruddle created the world's first private microendodontic simulation training center in 1989 and has trained several thousand dentists microscope-assisted endodontic techniques. He is well-known for his ability to empower colleagues and motivate clinicians towards their full potential. Additionally, Dr. Ruddle maintains a private practice limited to endodontics in Santa Barbara.

Dr. Ruddle received his dental degree from University of the Pacific, School of Dentistry, San Francisco, California, in 1974. In 1976, he completed his postgraduate work in endodontics at Harvard School of Dental Medicine, Boston, Massachusetts.

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



Original Release Date: December 4, 2021
Review Date: TBD
*Expiration Date: December 4, 2024

*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
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 www.ada.org/goto/cerp.