To evaluate oral health conditions in pediatric liver transplant recipients, with special focus on caries, green staining of the teeth, gingival bleeding, and gingival overgrowth. 40 patients (mean age 11.6 years) were examined at a routine follow-up visit, 6 months to 16 years after liver transplantation at the Swiss Center for Liver Disease in Children. After the medical examination, participants were further examined for the presence of dental caries, periodontal disease, GE, and GTC. The mean decay, missing, and filled teeth (dmft/DMFT) score was 3.8. 45% of the participants presented at least one carious lesion. Two-third of the participants had more than 20% of sites with the presence of plaque and gingival inflammation. Signs of GE were found in 18% and GTC in 30% of the participants. A positive correlation was identified between GTC and peak serum bilirubin (P<.001) and primary diagnosis of cholestatic disease (P=.04). Gingival inflammation was associated with plaque (P<.001), use of immunosuppressive medication (P=.04), and was more pronounced in children with cholestatic disease (P=.007). Children and young adults with liver transplants presented a rather poor oral health status. Liver transplant physicians should counsel patients for regular dental follow-up in order to avoid serious dental infections.