Evaluation of Periapical Lesions and Their Association with Maxillary Sinus Abnormalities on Cone-beam Computed Tomographic Images

4.5 (2 votes)

Periapical inflammation is often responsible for distinct maxillary sinus (MS) changes. This retrospective, cross-sectional study evaluated the association between the clinical characteristics of periapical lesions (presence, size, and distance) in maxillary posterior teeth and the presence of sinus abnormalities by evaluating cone-beam computed tomographic (CBCT) images obtained from an archived collection.

At the conclusion, participants should be able to:

  • Detect the presence of periapical lesions on tomographic images and analyze their relationship with maxillary sinus abnormalities.
  • Evaluate whether the size of the periapical lesion determines the presence of maxillary sinus abnormalities.
  • Discuss the importance of the distance between the periapical lesion edge and the maxillary sinus floor and its consequences.

1.0 CE hour 


Open to download resource.
Open to download resource.
7 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

Carla A.B.C.M. Nunes, D.D.S., M.Sc., Ph.D.

Orlando Aguirre Guedes, D.D.S., M.Sc., Ph.D.

Ana Helena G. Alencar, D.D.S., M.Sc., Ph.D.

Ove A. Peters, D.MD, M.S., Ph.D.

Ove A. Peters, DMD, MS, PhD, is tenured professor and the Chair of the Department of Endodontics, as well as Director of the Advanced Education Program in Endodontology, at the University of the Pacific in San Francisco, California. He earned his dental degree from the University of Kiel, Germany, his endodontic certificates first in 2001 from the University of Zurich, Switzerland, and then again along with an MS degree in 2006 from the University of California, San Francisco.

Dr. Peters served as an Assistant Professor of Prosthodontics from 1993¬1996 at the University of Heidelberg and as the Head of the Faculty Practice in restorative dentistry at the University of Zurich in 2001. He is a fellow of the American and International Colleges of Dentists, a Diplomate of the American Board of Endodontics, and a recipient of multiple awards, including the Louis I. Grossman and the Hans Genet Awards.

In addition to his role as Associate Editor of the International Endodontic Journal, Dr. Peters has authored more than 175 scientific articles, abstracts, and 15 chapters in endodontic textbooks, as well as two books, and has lectured both nationally and internationally.

His main scientific interests are the design and performance of root canal instruments. In this area Dr. Peters has developed novel methods of three-dimensional imaging and mechanical testing. He has also assessed the efficacy of antimicrobial regimes in root canal treatment. More recently he became involved in research in endodontic and stem cell biology.

Cyntia R.A. Estrela, D.D.S., M.Sc., Ph.D.

Carlos Estrela, D.D.S., M.Sc., Ph.D.