Valacyclovir for Acute Apical Abscess Pain: A Randomized, Placebo-controlled, Double-blind Study

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CE Hours: 1.0

Description: Acute apical abscesses are known for rapid-onset pain and swelling from pulp necrosis. While typically associated with polymicrobial infections, recent research suggests that active herpesvirus infections may also contribute. This randomized, doubleblind, placebo-controlled trial aimed to evaluate if valacyclovir, when combined with amoxicillin, can consistently manage pain and how individual patients respond within a larger population.

At the conclusion of this article, the reader will be able to: 

  • Explain the proposed role of herpesviruses, particularly HCMV and EBV, in the pathogenesis and severity of acute apical abscesses. 
  • Describe the rationale for using adjunctive valacyclovir with systemic antibiotics in patients with acute apical abscesses and moderate-to-severe persistent pain. 
  • Evaluate the study design, eligibility criteria, and primary clinical outcomes used to assess whether adjunctive valacyclovir accelerates pain reduction and decreases analgesic use.

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Valacyclovir for Acute Apical Abscess Pain: A Randomized, Placebo-controlled, Double-blind Study
Open to download resource.
Open to download resource. Published 3/1/2026
Evaluation
8 Questions
CE Test
5 Questions  |  Unlimited attempts  |  4/5 points to pass
5 Questions  |  Unlimited attempts  |  4/5 points to pass
Certificate
1.00 CE credit  |  Certificate available
1.00 CE credit  |  Certificate available
Mike Sabeti, DDS, MA

Mike Sabeti, DDS, MA

Dr. Sabeti's impressive dental career began with a DDS degree from the University of Texas Dental Branch at Houston in 1993. He then pursued further specialization, completing programs in Periodontics at Tufts School of Dental Medicine and Endodontics at the Herman Ostrow School of Dentistry of USC .
Following his postgraduate training, Dr. Sabeti served at the University of Texas Dental Branch from 1995 to 2000 in postgraduate periodontology. He has since distinguished himself through leadership roles at the University of California, San Francisco (UCSF). Currently, he directs their postgraduate endodontics program and chairs the PECC. He also holds the prestigious position of president for the Northern California Academy of Endodontics. He is also a site visitor for The Commission on Dental Accreditation and a delegate with the American Dental Education Association.
Dr. Sabeti is a board-certified endodontist renowned for his contributions to the field. He has actively shared his expertise through numerous invited presentations, publications in textbooks and chapters, and his dedication has been recognized with several awards. These include the Certificate in Recognition of Outstanding Services at USC, a Certificate of Appreciation from the University of Texas, and the Excellence in Teaching Award from UCSF's Haile T. Debas Academy of Medical Educators.

Speaker Disclosure

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.

Kyle Kitasoe, DDS

Kyle Kitasoe, DDS