Which antifungal is most commonly used for treating oral candidiasis in pediatric dental patients?

Prepare for the American Board of Pediatric Dentistry Oral Boards. Utilize flashcards and multiple-choice questions with hints and explanations to ace your exam!

Treating oral candidiasis in children is usually done with a topical antifungal because the infection is confined to the mouth and we want to minimize systemic exposure. Nystatin is the most commonly used option for pediatric patients. It’s a polyene that binds to ergosterol in the fungal membrane, creating pores and leading to fungal cell death. When given as a suspension for swish and swallow, it stays largely local to the oral mucosa, providing effective treatment with very little systemic absorption and a favorable safety profile for kids. Typically, it’s used for about one to two weeks, with noticeable improvement as the plaques and symptoms fade.

Other antifungals are used in more specific situations. Fluconazole is a systemic azole and is reserved for cases that don’t respond to topical therapy, extensive disease, or when immune compromise is a factor, because systemic therapy carries greater risk of side effects and drug interactions. Ketoconazole has fallen out of favor in many settings due to potential liver toxicity and interactions. Miconazole can be used topically, but it is less commonly the first choice in children because nystatin has a longer track record of safety and practicality in the pediatric population.