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  • Dentists
  • Dental Hygienists
  • Dental Assisting
Hours: 2 Contact Hours
  • Ronald S. Brown, DDS, MS
  • LaToya M. Barham, DDS
Peer Reviewer(s): Raymond K. Martin, DDS, MAGD
Item#: L0740
Contents: 1 Course Book (32 pages)
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Recurrent Aphthous Ulceration: Epidemiology, Differential Diagnosis, and Therapy

Price $19.95
Item # L0740
When available, the Online Course format is included with the hard copy, eBook, or audio book formats!

Release Date: July 18, 2016

Expiration Date: July 17, 2019


Recurrent aphthous ulceration (RAU), also known as recurrent aphthous stomatitis and canker sores, is a common oral ulceration condition. RAU is widely considered to be a chronic inflammatory condition that affects approximately 20% of the population. These lesions tend to be episodic and may repeatedly arise over time in otherwise healthy individuals. RAU is a common lesion that presents to all clinical dentists. It is important for dentists to be knowledgeable concerning this pathologic condition in order to alleviate patients’ concerns and pain.

This basic-level course is intended to educate dentists and dental hygienists regarding RAU so that they are better equipped to effectively diagnose and treat their patients with this condition. It is important to provide clinicians with necessary information regarding diagnosis (including differential diagnosis) and treatment. The section on etiopathology discusses the immune-relate etiology of RAU as well as the gaps in our understanding of what causes RAU. The course addresses the epidemiology and general characteristics of RAU and differentiates the forms of the condition. Research on the link between celiac disease and RAU is presented and discussed. Finally, the course presents information on the varied treatment modalities for RAU.



AGD Subject Code: 734

Western Schools designates this activity for 2 continuing education credits.



Course Objectives

  • Outline the epidemiology of oral recurrent aphthous ulceration (RAU).
  • Differentiate the three forms of RAU.
  • Describe the immune-related etiology for RAU.
  • Discuss differential diagnoses involving RAU.
  • Identify the treatments available for RAU.


Ronald S. Brown, DDS, MS, Dipl ABOM, FAOM (HON), FACD, FICD, is a professor in the Department of Comprehensive Dentistry, Division of Oral Diagnosis, at Howard University College of Dentistry. Dr. Brown attended the University of Maryland and graduated from Georgetown University School of Dentistry in 1971. After serving in the United States Army Dental Corps, Dr. Brown began in private dental practice in Northern Virginia and the District of Columbia. In 1988, he completed postdoctoral education at Georgetown University with an MS in pharmacology and oral medicine. Dr. Brown has held faculty positions at Georgetown University School of Dentistry and the University of Texas Health Science Center at Houston. Currently, he is a professor of oral diagnosis at Howard University College of Dentistry (HUCD), a clinical associate professor of otolaryngology at Georgetown University Medical Center, and a volunteer clinical research associate at the Hematology Branch of the National Heart, Lung, and Blood Institute of the National Institutes of Health. He is also the director of continuing dental education at HUCD. Dr. Brown’s areas of research include oral medicine, drug-induced gingival overgrowth, clinical trials, and oral inflammatory diseases (chronic oral graft-versus-host disease). He is a reviewer for JADA; General Dentistry; Oral Diseases; Journal of Dental Education; Postgraduate Medicine; and Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, and Endodontics. He is on the editorial board of Dentistry Today and Clinical, Cosmetic and Investigational Dentistry. He has more than 100 published peer-reviewed journal articles and more than a dozen combined published books and book chapters and has lectured and presented widely, both nationally and internationally. His mentors include Dr. William K. Bottomley, Dr. William T. Beaver, Dr. Sol Silverman, Jr., and Dr. Samuel Dreizen. For the past several years, Dr. Brown has been continuously listed as one of the top 100 CDE providers by Dentistry Today. He is a Diplomate of the American Board of Oral Medicine (ABOM), past-president of the ABOM, and a past-president of the American Academy of Oral Medicine. 

LaToya Barham, DDS, is an assistant professor and predoctoral program clinical coordinator in the Department of Pediatric Dentistry at Howard University College of Dentistry (HUCD). Dr. Barham earned a bachelor of science degree in biology from Clark Atlanta University in 2000 and a DDS from HUCD in 2004. She went on to earn a certificate in pediatric dentistry from HUCD in 2006. Dr. Barham is the creator and director of H.O.P.E. Yes!, a 3-week summer enrichment program that exposes underrepresented minority elementary, middle, and high school students to careers in dentistry and allied health sciences. In addition to her academic appointment, Dr. Barham maintains private practices in Northern Virginia and the District of Columbia.


Raymond K. Martin, DDS, MAGD, graduated in 1979 from Texas Tech University with a bachelor’s degree in microbiology and earned his DDS in 1983 from the University of Texas Health Science Center at San Antonio. He then went on to study at Tufts University School of Dental Medicine in the General Practice Residency Program. Dr. Martin began his work in dental risk management after being awarded a Mastership in the Academy of General Dentistry. He consults with 20 legal firms as an expert witness and lectures extensively on dental risk management and ethics in dentistry. In addition, Dr. Martin teaches CAD/CAM dentistry as a CEREC mentor and has served as a Key Opinion Leader for an international dental implant manufacturer. Dr. Martin has maintained a private practice for more than three decades and is currently president of the Massachusetts Dental Society. He has served the American Dental Association on the Future of Dentistry work group and is currently a member of the Council on Government Affairs.

  • Courses must be completed on or before the expiration date noted in the course description above.
  • You must score 75% or higher on the final exam and complete the course evaluation to pass this course and receive a certificate of completion.
  • Through our review processes, Western Schools ensures that this course content is presented in a balanced, unbiased manner and is free from commercial influence. It is Western Schools’ policy not to accept commercial support.
  • All persons involved in the planning and development of this course have disclosed no relevant financial relationships or other conflicts of interest related to the course content.