S-6 Decompression of Large Apical Lesions

4.8 (5 votes)

CE Hours: 1.0

Description: Nonsurgical endodontic therapy is highly successful in the treatment of apical periodontitis; however, Nair states that true apical cysts likely will not heal without surgical intervention. Apical surgery with root-end resection and root-end filling of teeth with unhealed apical periodontitis is also highly successful. Often these lesions can be very large and encompass adjacent teeth with vital pulps. Complete enucleation of a large apical lesion can potentially lead to devitalization of adjacent teeth with vital pulps. Decompression of these large apical lesions, following nonsurgical endodontic treatment, can lead to a reduction in the size of the lesion, and in some cases lead to complete healing. However, most cases will need surgical intervention. The advantage of decompression is that, even if surgery is required to bring about complete healing, the lesion is reduced in size to the extent that adjacent teeth with vital pulps will not be subjected to devitalization from the surgical procedure. Cases demonstrating different approaches and techniques for decompression will be presented.

  • Differentiate between marsupialization and decomprssion.
  • List the advantages and disadvantages of decompressing large apical lesions.
  • Describe different techniques for decompressing large apical lesions.


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9 Questions
CE Test
5 Questions  |  Unlimited attempts  |  4/5 points to pass
5 Questions  |  Unlimited attempts  |  4/5 points to pass
1.00 CE credit  |  Certificate available
1.00 CE credit  |  Certificate available

James D. Johnson, D.D.S., M.S.

Dr. Johnson is chair of the department of endodontics at the University of Washington, and also serves as the program director for the advanced specialty education program in endodontics. Dr. Johnson retired from the U.S. Navy Dental Corps in 2003 at the rank of captain. He was the specialty leader for endodontics, Bureau of Medicine and Surgery to the Surgeon General of the Navy. He was chair of the endodontics department and director of the advanced specialty education program in endodontics at the Naval Postgraduate Dental School, and also was chair of the research department. He is a Diplomate of the American Board of Endodontics, and a current ABE director, serving this year as President of the American Board of Endodontics. He has published many scientific articles and has authored chapters in text books, including Ingle's Endodontics, 6th Edition. Dr. Johnson has lectured both nationally and internationally.

James D. Johnson, D.D.S., M.S.
I declare that I have no proprietary, financial, or other personal interest of any nature or kind in any product, service, course, and/or company, or in any firm beneficially associated therewith, that will be discussed or considered during the proposed presentation.