Introduction: Hospitalized children can present some complications if they do not present a correct oral care during hospitalization. Objective: This study aimed to perform an oral evaluation of children and adolescents hospitalized in an intensive care unit of a children's hospital at southern Brazil. Material and methods: 49 subjects were examined, aged from 0 to 17 years old, using the modified Oral Assessment Guide (OAGm). The lips, corner of the mouth, gums, oral mucosa, saliva, tongue, and teeth were examined. Each category was classified in a numeric scale from 1 to 3, where 1 means the better condition and 3 the worse. Results: The results showed alterations in the lips, tongue, oral biofilm, and saliva in most of the subjects. The OAGm value indicated a worse oral condition in older children. The OAGm values for children with teeth were higher than that for edentulous children, this difference was statistically significant (p<0.05). Conclusion: It could be concluded that children hospitalized in an intensive care unit show deficiency in oral health when assessed through OAGm.

Hospitalized children can present some complications if they do not present a correct oral care during hospitalization. Objective: This study aimed to perform an oral evaluation of children and adolescents hospitalized in an intensive care unit of a children’s hospital at southern Brazil. Material and methods: 49 subjects were examined, aged from 0 to 17 years old, using the modified Oral Assessment Guide (OAGm). The lips, corner of the mouth, gums, oral mucosa, saliva, tongue, and teeth were examined. Each category was classified in a numeric scale from 1 to 3, where 1 means the better condition and 3 the worse. Results: The results showed alterations in the lips, tongue, oral biofilm, and saliva in most of the subjects. The OAGm value indicated a worse oral condition in older children. The OAGm values for children with teeth were higher than that for edentulous children, this difference was statistically significant (p<0.05). Conclusion: It could be concluded that children hospitalized in an intensive care unit show deficiency in oral health when assessed through OAGm.> p<0.05). Conclusion: It could be concluded that children hospitalized in an intensive care unit show deficiency in oral health when assessed through OAGm.