Objective: To describe the successful intervention with a ready-made fluoride tray for treatment of severe tongue biting problem in a 3-year-old Wilms’ tumor child admitted in Surgical Intensive Care Unit (SICU).
Material and Method: The medical record of a tongue biting Wilms’ tumor child was retrospectively reviewed.
Results: The outcome was complete healing and regaining of normal tongue size and function without any complication. At the follow-up, the patient could talk and swallow normally.
Conclusion: Ready-made fluoride trays as mouth guard can be successful in cases where patients are unable to have a custom-made mouth guard due to severe tongue protrusion. It could also be applied to similar situations and should be considered as another alternative treatment.

Keywords: Fluoride tray, Tongue biting